{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0x924a688dabecee792dad4cf234eedf0dc826a70876e83ec77817407d49bf1166",
    "signature": "0xc9d96835b2636caeb3e7d881656c6807ca21a19fa471bb63f1b678b969870fbc2bd8f0e2ca01330ebe3d2c90015236e75764f6f52ae44068f7f48171f6b69b391b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}