{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "214443",
    "entityType": "User",
    "nonce": "0x61d546f1aaad2f2a1ac3244094b466f996af4def6a058203fc59b13aef51a5a3",
    "signature": "0xcec9174a7f5cbf555ecdb5542ff61474063a60f62d93da3a1224944826da3cb9495192ace0f43361ef7b6687b21370b22a9fb5bd503a48a35761dcab999c22021b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}