{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "456716469",
    "entityType": "User",
    "nonce": "0xd3c4fbfe47639880a1d4b36d2371390cf4f36993c357fc7c77dee57f6c5e15d2",
    "signature": "0x9b1740452a7591b62846c794fef28aab17f3a1fb1c33d9b45c8cadb99b4998976210f98752851d91f9751407407d139e11ce65497bd2f9004fceb5452ca9ba491b",
    "signer": "0x292eF57C1FAAc86008ab58D5116e0ba424C9189b",
    "userId": "721084704"
  }
}