{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc88d0dae5cf5ec7f7f836a3fe8cde8e7bda7eb5e75016da70d36e3357799aa7b",
    "signature": "0x56323056f49a012c5273ed08dbbeb39a3fb20923ac4fb3db5ce33b8ebb3fa2b639f36f0fc628d1847ad94266f69e6258f9eae2206bfe59a182632d0f2f97e5841c",
    "signer": "0x8E3D0d0fc92742f415eD0476fab424BDe6C3dcC4",
    "userId": "170701347"
  }
}