{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0ff9d7e951fd92333a0f74aac7a54923edf05e537e7900277709f9956cdeb8d8",
    "signature": "0x4130bfdf972d866409eba0d5c59107e0e703e08da20072552a70dfeda2f1800f11dc1d64607e2d10cb1606658533650c57f975f5da62d5290fe08a08a522f22e1b",
    "signer": "0xd44dbA6cEb05Bd1A61C5ACC8cEb7B97257aCd78C",
    "userId": "879781386"
  }
}