{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb6d8636b33eea76c50e1747449cc59ce7d8962a88fe3faa75fa6b56638dc45fa",
    "signature": "0x9c5432b9803e0bf8834c52c50e60dae91d3bf74a6d71cdde3b64de7ae4d40d8c317152d7835416c849670944a6368d830e800d735b4baf81019b354d9619e8301b",
    "signer": "0x334c1E156039f843FC1FC4B64FBc58136cE8414a",
    "userId": "973129552"
  }
}