{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916564613",
    "entityType": "User",
    "nonce": "0xd6b9e68a62783473010704acff4360e4dfd18d275c59e5d7a89d9b7c77f47ad1",
    "signature": "0xe1fd766f78607daa9317f5ae349bf2fd37fc39b52b85b7d524b68ef44a388421430f1aaf489171b8a27d37df77f754d15e120fa35689b8b5cca0fe4c88566a361c",
    "signer": "0x90FD14E5f569756111EE3AECbcE1AAb95c2A01da",
    "userId": "86867162"
  }
}