{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xddb431aef737eaf79fa0a6f28a38f73c9fb0f530524b9321e69288f10336bb20",
    "signature": "0x31ecf704521eee99afaa395404c712fad400b09f876e02c75cf2a31fca4d2121743d4d9e3e5af84fc662cde11f236ce13b8e32cb5457a23f4f45a75c1e9548841b",
    "signer": "0xaB3cb188f1f007f3a3Ed10BDd1eF15345eDDE18C",
    "userId": "279192109"
  }
}