{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x42bc4c5da66bbd3209c782f5a1093cb507a881213205ab4677b5e509a4c960cd",
    "signature": "0x002c99e1f4a5c6f03186f33227054fe4e07002a06e1e624e54384f3e8583f8e57c8d5074cade70b9d1737da045ff48386f818da3e2b7564b71e40b4a63d6df401c",
    "signer": "0x2C8378e2B6554919e06e1Be17D97fC2fFc0eDEe9",
    "userId": "557110086"
  }
}