curl --request POST \
  --url http://localhost:4100/v1/projects/{projectId}/gas-policies/{gasPolicyId}/children/prepare \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "agent": "<string>",
  "transfer": {
    "recipients": [
      "<string>"
    ],
    "maxPerActionBaseUnits": "<string>",
    "maxTotalBaseUnits": "<string>"
  },
  "mandate": {
    "validFrom": 140737488355328,
    "expiresAt": 140737488355328,
    "approvalExpiresAt": 140737488355328,
    "salt": "<string>"
  }
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    agent: '<string>',
    transfer: {
      recipients: ['<string>'],
      maxPerActionBaseUnits: '<string>',
      maxTotalBaseUnits: '<string>'
    },
    mandate: {
      validFrom: 140737488355328,
      expiresAt: 140737488355328,
      approvalExpiresAt: 140737488355328,
      salt: '<string>'
    }
  })
};

fetch('http://localhost:4100/v1/projects/{projectId}/gas-policies/{gasPolicyId}/children/prepare', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "draftId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "draftExpiresAt": "2023-11-07T05:31:56Z",
  "gasPolicyId": "<string>",
  "rootMandateId": "<string>",
  "parentMandateId": "<string>",
  "parentAgent": "<string>",
  "review": {
    "agent": "<string>",
    "recipients": [
      "<string>"
    ],
    "maxPerActionBaseUnits": "<string>",
    "maxTotalBaseUnits": "<string>",
    "validFrom": 1,
    "expiresAt": 1,
    "depth": 1,
    "maxDepth": 1,
    "maxActiveDescendants": 1
  },
  "authority": {
    "mandateTerms": {
      "parentId": "<string>",
      "account": "<string>",
      "agent": "<string>",
      "accountProfileId": "<string>",
      "installEpoch": "<string>",
      "projectId": "<string>",
      "mode": 1,
      "policyVersion": 1,
      "policyHash": "<string>",
      "validFrom": 1,
      "expiresAt": 1,
      "maxDepth": 1,
      "maxActiveDescendants": 1,
      "approvalExpiresAt": 1,
      "salt": "<string>"
    },
    "mandatePolicy": "<string>",
    "mandateId": "<string>"
  },
  "signing": {
    "signer": "<string>",
    "method": "eth_signTypedData_v4",
    "typedData": {
      "domain": {},
      "types": {},
      "primaryType": "<string>",
      "message": {}
    },
    "expectedHash": "<string>"
  },
  "submission": {
    "to": "<string>",
    "functionName": "createChildMandate"
  },
  "observedBlockNumber": "<string>"
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "correlationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "correlationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "correlationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "correlationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "correlationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "correlationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "correlationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "correlationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  }
}