{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x2d2ca5cd8f599d4c8a62a0ceca0062fcca39fcb247049f40f68f62553251f4e4",
    "signature": "0x36ce43262d989bd5cd7d137fb8655690429ecf3be030df060186abffec7f7fa14e36bd65c1f841870b0aa700be852db201aaf6f3b6b6298699a92f55a6efd4061b",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}