{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x764c7c2673f1a5935cbdcb17adccfd352bba2df1c88805fd78a8e985c8dad3de",
    "signature": "0x1ecb885d8acbbbbfcd250daa6dd274643ac9ddd656b612045b70a003a90601782a10202507aaff7791657cb4c36c8baccb203e6cf6af1dc980114a647247c1001c",
    "signer": "0x6452c93F93393bDB2269b0738595E6015eF3c9c0",
    "userId": "84965487"
  }
}