diff --git a/chain-api/src/base/base-contract.service.ts b/chain-api/src/base/base-contract.service.ts
index dca2b7d..3fea10f 100644
--- a/chain-api/src/base/base-contract.service.ts
+++ b/chain-api/src/base/base-contract.service.ts
@@ -4,5 +4,5 @@ import { ProviderService } from './provider/provider.service';
 @Injectable()
 export abstract class BaseContractService {
   constructor(public readonly providerService: ProviderService) {}
-  abstract deploy(dto: object): Promise<any>;
+  abstract deploy(dto: object, seed: string): Promise<any>;
 }
diff --git a/chain-api/src/base/provider/provider.service.ts b/chain-api/src/base/provider/provider.service.ts
index e47ff33..ee29de5 100644
--- a/chain-api/src/base/provider/provider.service.ts
+++ b/chain-api/src/base/provider/provider.service.ts
@@ -22,13 +22,10 @@ export class ProviderService {
     return this.provider;
   }
 
-  async getSigner() {
+  async getSigner(seed: string) {
     if (!this.provider) {
       await this.getProvider();
     }
-    return new ethers.Wallet(
-      this.configService.getOrThrow('POLYGON_PK'),
-      this.provider,
-    );
+    return ethers.Wallet.fromPhrase(seed, this.provider);
   }
 }
diff --git a/chain-api/src/common/common.dto.ts b/chain-api/src/common/common.dto.ts
new file mode 100644
index 0000000..d7f903c
--- /dev/null
+++ b/chain-api/src/common/common.dto.ts
@@ -0,0 +1 @@
+import { IsString } from 'class-validator';
diff --git a/chain-api/src/contract-interact/agreement/agreement.controller.ts b/chain-api/src/contract-interact/agreement/agreement.controller.ts
index d6b4de0..fc26251 100644
--- a/chain-api/src/contract-interact/agreement/agreement.controller.ts
+++ b/chain-api/src/contract-interact/agreement/agreement.controller.ts
@@ -6,24 +6,32 @@ import {
   RequestAgreementDto,
 } from './agreement.dto';
 import { ApiTags } from '@nestjs/swagger';
+import { GetHeader } from '../../decorators/getHeader.decorator';
 @ApiTags('Agreement')
 @Controller('agreements')
 export class AgreementController {
   constructor(private readonly agreementService: AgreementService) {}
 
   @Post('deploy')
-  async deployAgreement(@Body() deployDto: DeployAgreementDto) {
-    return await this.agreementService.deploy(deployDto);
+  async deployAgreement(
+    @Body() deployDto: DeployAgreementDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return await this.agreementService.deploy(deployDto, seed);
   }
 
   @Get(':contractAddress')
   async getAgreementResponse(
     @Param('contractAddress') contractAddress: string,
+    @GetHeader('X-Seed') seed: string,
   ) {
-    return await this.agreementService.getResponse({ contractAddress });
+    return await this.agreementService.getResponse({ contractAddress }, seed);
   }
   @Post('request')
-  async requestAgreement(@Body() requestDto: RequestAgreementDto) {
-    return await this.agreementService.request(requestDto);
+  async requestAgreement(
+    @Body() requestDto: RequestAgreementDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return await this.agreementService.request(requestDto, seed);
   }
 }
diff --git a/chain-api/src/contract-interact/agreement/agreement.service.ts b/chain-api/src/contract-interact/agreement/agreement.service.ts
index 03e4125..32f5a48 100644
--- a/chain-api/src/contract-interact/agreement/agreement.service.ts
+++ b/chain-api/src/contract-interact/agreement/agreement.service.ts
@@ -19,7 +19,7 @@ export class AgreementService extends BaseContractService {
   ) {
     super(providerService);
   }
-  async deploy(dto: DeployAgreementDto): Promise<any> {
+  async deploy(dto: DeployAgreementDto, seed: string): Promise<any> {
     const { multiSigWallet } = dto;
     const { bytecode } = await hre.artifacts.readArtifact('Agreement');
 
@@ -36,20 +36,23 @@ export class AgreementService extends BaseContractService {
       ],
     );
     const fullBytecode = bytecode + abiEncodedConstructorArguments.substring(2);
-    const submitData = await this.multiSigService.submitTransaction({
-      contractAddress: multiSigWallet,
-      destination: null,
-      value: '0',
-      data: fullBytecode,
-    });
+    const submitData = await this.multiSigService.submitTransaction(
+      {
+        contractAddress: multiSigWallet,
+        destination: null,
+        value: '0',
+        data: fullBytecode,
+      },
+      seed,
+    );
     delete submitData.data;
     return submitData;
   }
 
-  async getResponse(dto: GetAgreementInfoDto) {
+  async getResponse(dto: GetAgreementInfoDto, seed: string) {
     const { contractAddress } = dto;
     const { abi } = await hre.artifacts.readArtifact('Agreement');
-    const signer = await this.providerService.getSigner();
+    const signer = await this.providerService.getSigner(seed);
 
     const contract = new ethers.Contract(contractAddress, abi, signer);
 
@@ -57,7 +60,7 @@ export class AgreementService extends BaseContractService {
     return answer.toString();
   }
 
-  async request(dto: RequestAgreementDto) {
+  async request(dto: RequestAgreementDto, seed: string) {
     const { multiSigWallet, contractAddress, url } = dto;
 
     const ISubmitMultiSig = new ethers.Interface([
@@ -65,11 +68,14 @@ export class AgreementService extends BaseContractService {
     ]);
     const data = ISubmitMultiSig.encodeFunctionData('request', [url]);
 
-    return await this.multiSigService.submitTransaction({
-      contractAddress: multiSigWallet,
-      destination: contractAddress,
-      value: '0',
-      data,
-    });
+    return await this.multiSigService.submitTransaction(
+      {
+        contractAddress: multiSigWallet,
+        destination: contractAddress,
+        value: '0',
+        data,
+      },
+      seed,
+    );
   }
 }
diff --git a/chain-api/src/contract-interact/license/license.controller.ts b/chain-api/src/contract-interact/license/license.controller.ts
index 6aa6ad0..9cf6f6d 100644
--- a/chain-api/src/contract-interact/license/license.controller.ts
+++ b/chain-api/src/contract-interact/license/license.controller.ts
@@ -9,47 +9,72 @@ import {
   RequestLicenseDto,
   SetPayoutContractDto,
 } from './license.dto';
+import { GetHeader } from '../../decorators/getHeader.decorator';
 @ApiTags('license')
 @Controller('license')
 export class LicenseController {
   constructor(private readonly licenseService: LicenseService) {}
   @Post('request')
-  async getLicenseRequest(@Body() dto: RequestLicenseDto) {
-    return this.licenseService.request(dto);
+  async getLicenseRequest(
+    @Body() dto: RequestLicenseDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.licenseService.request(dto, seed);
   }
 
   @Post('deploy')
-  async deploy(@Body() dto: DeployLicenseDto) {
-    return this.licenseService.deploy(dto);
+  async deploy(
+    @Body() dto: DeployLicenseDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.licenseService.deploy(dto, seed);
   }
 
   @Get('total-payout')
-  async getLicenseResponse(@Body() dto: GetLicenseInfoDto) {
-    return this.licenseService.getTotalPayoutInUSD(dto);
+  async getLicenseResponse(
+    @Body() dto: GetLicenseInfoDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.licenseService.getTotalPayoutInUSD(dto, seed);
   }
 
   @Get('shares')
-  async getShares(@Body() dto: GetShareLicense) {
-    return this.licenseService.getShares(dto);
+  async getShares(
+    @Body() dto: GetShareLicense,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.licenseService.getShares(dto, seed);
   }
 
   @Get('owners')
-  async getOwners(@Body() dto: GetLicenseInfoDto) {
-    return this.licenseService.getOwners(dto);
+  async getOwners(
+    @Body() dto: GetLicenseInfoDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.licenseService.getOwners(dto, seed);
   }
 
   @Get('payout-contract')
-  async getPayoutContract(@Body() dto: GetLicenseInfoDto) {
-    return this.licenseService.getPayoutContract(dto);
+  async getPayoutContract(
+    @Body() dto: GetLicenseInfoDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.licenseService.getPayoutContract(dto, seed);
   }
 
   @Post('payout')
-  async payout(@Body() dto: LicensePayoutDto) {
-    return this.licenseService.payout(dto);
+  async payout(
+    @Body() dto: LicensePayoutDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.licenseService.payout(dto, seed);
   }
 
   @Post('set-payout-contract')
-  async setPayoutContract(@Body() dto: SetPayoutContractDto) {
-    return this.licenseService.setPayoutContract(dto);
+  async setPayoutContract(
+    @Body() dto: SetPayoutContractDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.licenseService.setPayoutContract(dto, seed);
   }
 }
diff --git a/chain-api/src/contract-interact/license/license.service.ts b/chain-api/src/contract-interact/license/license.service.ts
index 2f99253..07cdb26 100644
--- a/chain-api/src/contract-interact/license/license.service.ts
+++ b/chain-api/src/contract-interact/license/license.service.ts
@@ -22,7 +22,7 @@ export class LicenseService extends BaseContractService {
   ) {
     super(providerService);
   }
-  async request(dto: RequestLicenseDto) {
+  async request(dto: RequestLicenseDto, seed: string) {
     const { multiSigWallet, contractAddress, url } = dto;
 
     const ISubmitMultiSig = new ethers.Interface([
@@ -30,20 +30,23 @@ export class LicenseService extends BaseContractService {
     ]);
     const data = ISubmitMultiSig.encodeFunctionData('request', [url]);
 
-    return await this.multiSigService.submitTransaction({
-      contractAddress: multiSigWallet,
-      destination: contractAddress,
-      value: '0',
-      data,
-    });
+    return await this.multiSigService.submitTransaction(
+      {
+        contractAddress: multiSigWallet,
+        destination: contractAddress,
+        value: '0',
+        data,
+      },
+      seed,
+    );
   }
 
-  async getTotalPayoutInUSD(dto: GetLicenseInfoDto) {
+  async getTotalPayoutInUSD(dto: GetLicenseInfoDto, seed: string) {
     const { contractAddress } = dto;
     const { abi } = await hre.artifacts.readArtifact(
       'StreamingRightsManagement',
     );
-    const signer = await this.providerService.getSigner();
+    const signer = await this.providerService.getSigner(seed);
 
     const contract = new ethers.Contract(contractAddress, abi, signer);
 
@@ -51,7 +54,7 @@ export class LicenseService extends BaseContractService {
     return answer.toString();
   }
 
-  async deploy(dto: DeployLicenseDto) {
+  async deploy(dto: DeployLicenseDto, seed: string) {
     const { multiSigWallet, shares, owners } = dto;
     const { bytecode } = await hre.artifacts.readArtifact(
       'StreamingRightsManagement',
@@ -80,22 +83,25 @@ export class LicenseService extends BaseContractService {
       ],
     );
     const fullBytecode = bytecode + abiEncodedConstructorArguments.substring(2);
-    const submitData = await this.multiSigService.submitTransaction({
-      contractAddress: multiSigWallet,
-      destination: null,
-      value: '0',
-      data: fullBytecode,
-    });
+    const submitData = await this.multiSigService.submitTransaction(
+      {
+        contractAddress: multiSigWallet,
+        destination: null,
+        value: '0',
+        data: fullBytecode,
+      },
+      seed,
+    );
     delete submitData.data;
     return submitData;
   }
 
-  async getPayoutContract(dto: GetLicenseInfoDto) {
+  async getPayoutContract(dto: GetLicenseInfoDto, seed: string) {
     const { contractAddress } = dto;
     const { abi } = await hre.artifacts.readArtifact(
       'StreamingRightsManagement',
     );
-    const signer = await this.providerService.getSigner();
+    const signer = await this.providerService.getSigner(seed);
 
     const contract = new ethers.Contract(contractAddress, abi, signer);
 
@@ -104,12 +110,12 @@ export class LicenseService extends BaseContractService {
     return answer;
   }
 
-  async getOwners(dto: GetLicenseInfoDto) {
+  async getOwners(dto: GetLicenseInfoDto, seed: string) {
     const { contractAddress } = dto;
     const { abi } = await hre.artifacts.readArtifact(
       'StreamingRightsManagement',
     );
-    const signer = await this.providerService.getSigner();
+    const signer = await this.providerService.getSigner(seed);
 
     const contract = new ethers.Contract(contractAddress, abi, signer);
 
@@ -129,12 +135,12 @@ export class LicenseService extends BaseContractService {
     return owners;
   }
 
-  async getShares(dto: GetShareLicense) {
+  async getShares(dto: GetShareLicense, seed: string) {
     const { contractAddress, ownerAddress } = dto;
     const { abi } = await hre.artifacts.readArtifact(
       'StreamingRightsManagement',
     );
-    const signer = await this.providerService.getSigner();
+    const signer = await this.providerService.getSigner(seed);
 
     const contract = new ethers.Contract(contractAddress, abi, signer);
 
@@ -144,21 +150,24 @@ export class LicenseService extends BaseContractService {
     return answer;
   }
 
-  async payout(dto: LicensePayoutDto) {
+  async payout(dto: LicensePayoutDto, seed: string) {
     const { multiSigWallet, contractAddress } = dto;
 
     const ISubmitMultiSig = new ethers.Interface(['function payout()']);
     const data = ISubmitMultiSig.encodeFunctionData('payout');
 
-    return await this.multiSigService.submitTransaction({
-      contractAddress: multiSigWallet,
-      destination: contractAddress,
-      value: '0',
-      data,
-    });
+    return await this.multiSigService.submitTransaction(
+      {
+        contractAddress: multiSigWallet,
+        destination: contractAddress,
+        value: '0',
+        data,
+      },
+      seed,
+    );
   }
 
-  async setPayoutContract(dto: SetPayoutContractDto) {
+  async setPayoutContract(dto: SetPayoutContractDto, seed: string) {
     const { multiSigWallet, contractAddress, payoutContract } = dto;
 
     const ISubmitMultiSig = new ethers.Interface([
@@ -168,11 +177,14 @@ export class LicenseService extends BaseContractService {
       payoutContract,
     ]);
 
-    return await this.multiSigService.submitTransaction({
-      contractAddress: multiSigWallet,
-      destination: contractAddress,
-      value: '0',
-      data,
-    });
+    return await this.multiSigService.submitTransaction(
+      {
+        contractAddress: multiSigWallet,
+        destination: contractAddress,
+        value: '0',
+        data,
+      },
+      seed,
+    );
   }
 }
diff --git a/chain-api/src/contract-interact/multi-sig/multi-sig-interact.controller.ts b/chain-api/src/contract-interact/multi-sig/multi-sig-interact.controller.ts
index 97796e0..7e7f18d 100644
--- a/chain-api/src/contract-interact/multi-sig/multi-sig-interact.controller.ts
+++ b/chain-api/src/contract-interact/multi-sig/multi-sig-interact.controller.ts
@@ -12,6 +12,7 @@ import {
   RevokeConfirmationDto,
   SubmitTransactionDto,
 } from '../multi-sig.dto';
+import { GetHeader } from '../../decorators/getHeader.decorator';
 @ApiTags('multi-sig')
 @Controller('multi-sig')
 export class MultiSigInteractController {
@@ -23,53 +24,81 @@ export class MultiSigInteractController {
   @Post('deploy')
   async deploy(
     @Body() dto: MultiSigWalletDto,
+    @GetHeader('X-Seed') seed: string,
   ): Promise<DeployMultiSigResponseDto> {
-    const addr = await this.multiSigWalletService.deploy(dto);
+    const addr = await this.multiSigWalletService.deploy(dto, seed);
     return {
       address: addr,
     };
   }
   @Get('owners/:address')
-  async getOwners(@Param('address') address: string) {
-    return this.multiSigWalletService.getOwners(address);
+  async getOwners(
+    @Param('address') address: string,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.multiSigWalletService.getOwners(address, seed);
   }
 
   @ApiOkResponse()
   @Post('submit-transaction')
-  async submitTransaction(@Body() dto: SubmitTransactionDto) {
-    return this.multiSigWalletService.submitTransaction(dto);
+  async submitTransaction(
+    @Body() dto: SubmitTransactionDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.multiSigWalletService.submitTransaction(dto, seed);
   }
 
   @ApiOkResponse()
   @Post('confirm-transaction')
-  async confirmTransaction(@Body() dto: ConfirmTransactionDto) {
-    return this.multiSigWalletService.confirmTransaction(dto);
+  async confirmTransaction(
+    @Body() dto: ConfirmTransactionDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.multiSigWalletService.confirmTransaction(dto, seed);
   }
 
   @ApiOkResponse()
   @Post('execute-transaction')
-  async executeTransaction(@Body() dto: ExecuteTransactionDto) {
-    return this.multiSigWalletService.executeTransaction(dto);
+  async executeTransaction(
+    @Body() dto: ExecuteTransactionDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.multiSigWalletService.executeTransaction(dto, seed);
   }
 
   @ApiOkResponse()
   @Post('revoke-confirmation')
-  async revokeConfirmation(@Body() dto: RevokeConfirmationDto) {
-    return this.multiSigWalletService.revokeConfirmation(dto);
+  async revokeConfirmation(
+    @Body() dto: RevokeConfirmationDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.multiSigWalletService.revokeConfirmation(dto, seed);
   }
 
   @Get('transaction-count/:contractAddress')
-  async getTransactionCount(@Param('contractAddress') contractAddress: string) {
-    return this.multiSigWalletService.getTransactionCount(contractAddress);
+  async getTransactionCount(
+    @Param('contractAddress') contractAddress: string,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.multiSigWalletService.getTransactionCount(
+      contractAddress,
+      seed,
+    );
   }
 
   @Get('transaction')
-  async getTransaction(@Body() dto: GetTransactionDto) {
-    return this.multiSigWalletService.getTransaction(dto);
+  async getTransaction(
+    @Body() dto: GetTransactionDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.multiSigWalletService.getTransaction(dto, seed);
   }
 
   @Post('deposit')
-  async deposit(@Body() dto: DepositContractDto) {
-    return this.multiSigWalletService.deposit(dto);
+  async deposit(
+    @Body() dto: DepositContractDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.multiSigWalletService.deposit(dto, seed);
   }
 }
diff --git a/chain-api/src/contract-interact/multi-sig/multi-sig.service.ts b/chain-api/src/contract-interact/multi-sig/multi-sig.service.ts
index 1b7c25a..14002a4 100644
--- a/chain-api/src/contract-interact/multi-sig/multi-sig.service.ts
+++ b/chain-api/src/contract-interact/multi-sig/multi-sig.service.ts
@@ -14,11 +14,11 @@ import { BaseContractService } from '../../base/base-contract.service';
 import { getContractAddress } from '@ethersproject/address';
 
 export class MultiSigWalletService extends BaseContractService {
-  async deploy(dto: MultiSigWalletDto) {
+  async deploy(dto: MultiSigWalletDto, seed: string) {
     const { abi, bytecode } =
       await hre.artifacts.readArtifact('MultiSigWallet');
 
-    const signer = await this.providerService.getSigner();
+    const signer = await this.providerService.getSigner(seed);
 
     const salaryContract = new ethers.ContractFactory(abi, bytecode, signer);
 
@@ -30,20 +30,20 @@ export class MultiSigWalletService extends BaseContractService {
     return myContract.getAddress();
   }
 
-  async getOwners(address: string) {
+  async getOwners(address: string, seed: string) {
     const { abi } = await hre.artifacts.readArtifact('MultiSigWallet');
 
-    const signer = await this.providerService.getSigner();
+    const signer = await this.providerService.getSigner(seed);
 
     const contract = new ethers.Contract(address, abi, signer);
 
     return await contract.getOwners();
   }
 
-  async submitTransaction(dto: SubmitTransactionDto) {
+  async submitTransaction(dto: SubmitTransactionDto, seed: string) {
     const { destination, value, data, contractAddress } = dto;
     const { abi } = await hre.artifacts.readArtifact('MultiSigWallet');
-    const signer = await this.providerService.getSigner();
+    const signer = await this.providerService.getSigner(seed);
 
     const contract = new ethers.Contract(contractAddress, abi, signer);
 
@@ -66,10 +66,10 @@ export class MultiSigWalletService extends BaseContractService {
     };
   }
 
-  async confirmTransaction(dto: ConfirmTransactionDto) {
+  async confirmTransaction(dto: ConfirmTransactionDto, seed: string) {
     const { contractAddress, index } = dto;
     const { abi } = await hre.artifacts.readArtifact('MultiSigWallet');
-    const signer = await this.providerService.getSigner();
+    const signer = await this.providerService.getSigner(seed);
 
     const contract = new ethers.Contract(contractAddress, abi, signer);
 
@@ -86,10 +86,10 @@ export class MultiSigWalletService extends BaseContractService {
     };
   }
 
-  async executeTransaction(dto: ExecuteTransactionDto) {
+  async executeTransaction(dto: ExecuteTransactionDto, seed: string) {
     const { index, contractAddress, isDeploy } = dto;
     const { abi } = await hre.artifacts.readArtifact('MultiSigWallet');
-    const signer = await this.providerService.getSigner();
+    const signer = await this.providerService.getSigner(seed);
 
     const contract = new ethers.Contract(contractAddress, abi, signer);
 
@@ -134,45 +134,39 @@ export class MultiSigWalletService extends BaseContractService {
     });
   }
 
-  async revokeConfirmation(dto: RevokeConfirmationDto) {
+  async revokeConfirmation(dto: RevokeConfirmationDto, seed: string) {
     const { index, contractAddress } = dto;
     const { abi } = await hre.artifacts.readArtifact('MultiSigWallet');
-    const signer = await this.providerService.getSigner();
+    const signer = await this.providerService.getSigner(seed);
 
     const contract = new ethers.Contract(contractAddress, abi, signer);
 
-    const tx = await contract.revokeConfirmation(index);
-
-    return tx;
+    return await contract.revokeConfirmation(index);
   }
 
-  async getTransactionCount(contractAddress: string) {
+  async getTransactionCount(contractAddress: string, seed: string) {
     const { abi } = await hre.artifacts.readArtifact('MultiSigWallet');
-    const signer = await this.providerService.getSigner();
+    const signer = await this.providerService.getSigner(seed);
 
     const contract = new ethers.Contract(contractAddress, abi, signer);
 
-    const txCount = await contract.getTransactionCount();
-
-    return txCount;
+    return await contract.getTransactionCount();
   }
 
-  async getTransaction(dto: GetTransactionDto) {
+  async getTransaction(dto: GetTransactionDto, seed: string) {
     const { index, contractAddress } = dto;
     const { abi } = await hre.artifacts.readArtifact('MultiSigWallet');
-    const signer = await this.providerService.getSigner();
+    const signer = await this.providerService.getSigner(seed);
 
     const contract = new ethers.Contract(contractAddress, abi, signer);
 
-    const tx = await contract.getTransaction(index);
-
-    return tx;
+    return await contract.getTransaction(index);
   }
 
-  async deposit(dto: DepositContractDto) {
+  async deposit(dto: DepositContractDto, seed: string) {
     const { contractAddress, value } = dto;
     const convertValue = parseEther(value);
-    const signer = await this.providerService.getSigner();
+    const signer = await this.providerService.getSigner(seed);
 
     const { abi } = await hre.artifacts.readArtifact('MultiSigWallet');
     const contract = new ethers.Contract(contractAddress, abi, signer);
diff --git a/chain-api/src/contract-interact/salaries/salaries-interact.controller.ts b/chain-api/src/contract-interact/salaries/salaries-interact.controller.ts
index ee529c3..9d35d53 100644
--- a/chain-api/src/contract-interact/salaries/salaries-interact.controller.ts
+++ b/chain-api/src/contract-interact/salaries/salaries-interact.controller.ts
@@ -9,6 +9,7 @@ import {
 } from './salaries.dto';
 import { ApiOkResponse, ApiTags } from '@nestjs/swagger';
 import { DepositContractDto } from '../multi-sig.dto';
+import { GetHeader } from '../../decorators/getHeader.decorator';
 
 @ApiTags('salaries')
 @Controller('salaries')
@@ -21,35 +22,51 @@ export class SalariesController {
   @Post('deploy')
   async deploy(
     @Body() dto: SalariesDeployDto,
+    @GetHeader('X-Seed') seed: string,
   ): Promise<DeployContractResponseDto> {
-    const address = await this.salariesService.deploy(dto);
+    const address = await this.salariesService.deploy(dto, seed);
     return {
       address,
     };
   }
 
   @Get('usdt-price/:contractAddress')
-  async getUsdtPrice(@Param('contractAddress') contractAddress: string) {
-    return this.salariesService.getLatestUSDTPrice(contractAddress);
+  async getUsdtPrice(
+    @Param('contractAddress') contractAddress: string,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.salariesService.getLatestUSDTPrice(contractAddress, seed);
   }
 
   @Post('set-salary')
-  async setSalary(@Body() dto: SetSalaryDto) {
-    return this.salariesService.setSalary(dto);
+  async setSalary(
+    @Body() dto: SetSalaryDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.salariesService.setSalary(dto, seed);
   }
 
   @Get('salary')
-  async getSalary(@Body() dto: GetEmployeeSalariesDto) {
-    return this.salariesService.getSalary(dto);
+  async getSalary(
+    @Body() dto: GetEmployeeSalariesDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.salariesService.getSalary(dto, seed);
   }
 
   @Post('payout')
-  async createPayout(@Body() dto: CreatePayoutDto) {
-    return this.salariesService.createPayout(dto);
+  async createPayout(
+    @Body() dto: CreatePayoutDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.salariesService.createPayout(dto, seed);
   }
 
   @Post('deposit')
-  async deposit(@Body() dto: DepositContractDto) {
-    return this.salariesService.deposit(dto);
+  async deposit(
+    @Body() dto: DepositContractDto,
+    @GetHeader('X-Seed') seed: string,
+  ) {
+    return this.salariesService.deposit(dto, seed);
   }
 }
diff --git a/chain-api/src/contract-interact/salaries/salaries.service.ts b/chain-api/src/contract-interact/salaries/salaries.service.ts
index dbf2248..8021c2a 100644
--- a/chain-api/src/contract-interact/salaries/salaries.service.ts
+++ b/chain-api/src/contract-interact/salaries/salaries.service.ts
@@ -21,10 +21,10 @@ export class SalariesService extends BaseContractService {
   ) {
     super(providerService);
   }
-  async deploy(dto: SalariesDeployDto) {
+  async deploy(dto: SalariesDeployDto, seed: string) {
     const { abi, bytecode } = await hre.artifacts.readArtifact('Payroll');
 
-    const signer = await this.providerService.getSigner();
+    const signer = await this.providerService.getSigner(seed);
 
     const salaryContract = new ethers.ContractFactory(abi, bytecode, signer);
 
@@ -36,9 +36,9 @@ export class SalariesService extends BaseContractService {
     return await myContract.getAddress();
   }
 
-  async getLatestUSDTPrice(contractAddress: string) {
+  async getLatestUSDTPrice(contractAddress: string, seed: string) {
     const { abi } = await hre.artifacts.readArtifact('Payroll');
-    const signer = await this.providerService.getSigner();
+    const signer = await this.providerService.getSigner(seed);
 
     const contract = new ethers.Contract(contractAddress, abi, signer);
 
@@ -46,7 +46,7 @@ export class SalariesService extends BaseContractService {
     return parseInt(answer) / 1e8;
   }
 
-  async setSalary(dto: SetSalaryDto) {
+  async setSalary(dto: SetSalaryDto, seed: string) {
     const { employeeAddress, salary, contractAddress, multiSigWallet } = dto;
     const ISubmitMultiSig = new ethers.Interface([
       'function setSalary(address employee, uint salaryInUSDT)',
@@ -57,18 +57,21 @@ export class SalariesService extends BaseContractService {
       salary,
     ]);
 
-    return await this.multiSigService.submitTransaction({
-      contractAddress: multiSigWallet,
-      destination: contractAddress,
-      value: '0',
-      data,
-    });
+    return await this.multiSigService.submitTransaction(
+      {
+        contractAddress: multiSigWallet,
+        destination: contractAddress,
+        value: '0',
+        data,
+      },
+      seed,
+    );
   }
 
-  async getSalary(dto: GetEmployeeSalariesDto) {
+  async getSalary(dto: GetEmployeeSalariesDto, seed: string) {
     const { employeeAddress, contractAddress } = dto;
     const { abi } = await hre.artifacts.readArtifact('Payroll');
-    const signer = await this.providerService.getSigner();
+    const signer = await this.providerService.getSigner(seed);
 
     const contract = new ethers.Contract(contractAddress, abi, signer);
 
@@ -78,7 +81,7 @@ export class SalariesService extends BaseContractService {
     };
   }
 
-  async createPayout(dto: CreatePayoutDto) {
+  async createPayout(dto: CreatePayoutDto, seed: string) {
     const { employeeAddress, contractAddress, multiSigWallet } = dto;
     const ISubmitMultiSig = new ethers.Interface([
       'function payoutInETH(address employee)',
@@ -87,17 +90,20 @@ export class SalariesService extends BaseContractService {
       employeeAddress,
     ]);
 
-    return await this.multiSigService.submitTransaction({
-      contractAddress: multiSigWallet,
-      destination: contractAddress,
-      value: '0',
-      data,
-    });
+    return await this.multiSigService.submitTransaction(
+      {
+        contractAddress: multiSigWallet,
+        destination: contractAddress,
+        value: '0',
+        data,
+      },
+      seed,
+    );
   }
 
-  async deposit(dto: DepositContractDto) {
+  async deposit(dto: DepositContractDto, seed: string) {
     const { contractAddress, value } = dto;
-    const signer = await this.providerService.getSigner();
+    const signer = await this.providerService.getSigner(seed);
 
     const convertValue = parseEther(value);
 
diff --git a/chain-api/src/decorators/getHeader.decorator.ts b/chain-api/src/decorators/getHeader.decorator.ts
new file mode 100644
index 0000000..4aaaaf2
--- /dev/null
+++ b/chain-api/src/decorators/getHeader.decorator.ts
@@ -0,0 +1,8 @@
+import { createParamDecorator, ExecutionContext } from '@nestjs/common';
+
+export const GetHeader = createParamDecorator(
+  (data: string, ctx: ExecutionContext) => {
+    const request = ctx.switchToHttp().getRequest();
+    return request.headers[data.toLowerCase()];
+  },
+);
diff --git a/chain-api/src/ethereum/ethereum.controller.ts b/chain-api/src/ethereum/ethereum.controller.ts
index cfde614..3c692b3 100644
--- a/chain-api/src/ethereum/ethereum.controller.ts
+++ b/chain-api/src/ethereum/ethereum.controller.ts
@@ -13,7 +13,7 @@ export class EthereumController {
     return this.ethereumService.getAddressFromPrivateKey(privateKey);
   }
 
-  @Post('/address-from-seed')
+  @Post('/address-from-seed ')
   async getAddressFromSeedPhrase(@Body() body: GetSeedPhraseDto) {
     return this.ethereumService.getAddressFromSeedPhrase(body.seedPhrase);
   }