{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66763601",
    "entityType": "User",
    "nonce": "0x2edb6df431dadf7bebe7b01fb2c4a2d3b75fb176a01f94ff40e599c4656d8503",
    "signature": "0xd734e66a59753f9c8590ffdadda7b2908e38168c0bc7a31998545d6180615a51207e7d99f44da75c159355e61eafff3897223fc17a9b6052fcd4b71eea7b19d91b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}