{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "251854",
    "entityType": "User",
    "nonce": "0x0c516cc11f29a7fe8985c16744442efb44995cb4d19c74f7f5639dcb71b08bd4",
    "signature": "0x370bff22fbb080e0d5418a9bcc56f6617c29e79de629f4d54a375edfdf827287748a7c1f187065194d6199224053c4983e408a666f9b8809eeb9ec2035daee381b",
    "signer": "0x57Ad6E2E3fFc5ABe9b5FE7DC3bF7c07c8cCf9Ccf",
    "userId": "571702334"
  }
}