{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2cfef953f3290b999e10432a8e7473fbe36e55d216a5fe5f496ef5323a4b296e",
    "signature": "0x805a472b424b8d363a852c375097574a79eb3d66f895457dfc45fb0eed3d45da2ff684b41287b4e12a4d17567d435304fe6539ddc04a03b4db10074f95658e271c",
    "signer": "0x105EC7a8DF8B80Eea9e50F67A2596ABf9Cf9687C",
    "userId": "718324785"
  }
}