{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "817864519",
    "entityType": "User",
    "nonce": "0x38786c4393be90186376bf5697606b18ea9846c662c1f44b9d273151e00e4042",
    "signature": "0x45062397c97e32f7a6615474dffb0861a2ecb6d37c4316339c1c9e1448ec05f062aaec67385a6e893106d0420eee6e7370a02efe0c2e5c17f9ed7792070560d21b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}