{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8546c5644fbcd0d1eae2d2a5e5876ae27d2aba1ae4a5f1cc3e43dd829f4a3195",
    "signature": "0xd41b74d25711c3b51df00a7bb28ccea8a059010538cfb5982e35296dfeea16a32639e05fd975b37ba132692cc1fc116bfe5ea477e5a646dd2d495e657d5b50021c",
    "signer": "0x89436Dcd5742EDA8663c8D5FB952947E79ae4171",
    "userId": "157593161"
  }
}