{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "529301447",
    "entityType": "User",
    "nonce": "0x9f963705b53f8d6c7edaad4acbc0fee795e0988b6e1cfff8e80561785b46b55f",
    "signature": "0xd79b286151a789259c1ba23db8a446f3f15c44dbe52e5e77b7ff3c91d255e1fd1140d263fb55831ccde77c4e41170358aa931339267f5983885f2a43df6dc0b01b",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}