{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51335",
    "entityType": "User",
    "nonce": "0xfc644b29605d60e0c73233f118c184f6d605c83f17ca75e7a646c30ae69e29b9",
    "signature": "0x9d0dc45c238801613eec9f59e67f203d79c042d12041330030d8e396ad2df8f031f6ed8a29491c98ef977fc29de3c6ac206d69acd802ecf46508eb6a2252b9841c",
    "signer": "0xa24498458c4D424889FfEaE6EdB476c8E35C41BD",
    "userId": "787951188"
  }
}