{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdadb776ffd560b3664e0788a3ee7724fb4b66122a8fd55bd48c1ae0005463861",
    "signature": "0x302e1862e93f13479373f50d54d9202c85d841be483179c4c6f964e3852e22594b6c990fe98ebfe0d69bb14c2f37274ed589e05772df9c7cefa31d6625e94dea1c",
    "signer": "0xd79D6f64B387a54cF0F5747EFa4eAAec387AeeFF",
    "userId": "455100940"
  }
}