{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0x74a3d0bfc52dc41cdfb3969a09dfe0df4546a7a032e62abdc9628b6f18e69675",
    "signature": "0x719af48c6a35bc23c886949ccc666968f9f90f539a587830656d83a3f1e9a59c2d2a38b07f22bafcfc41d755df1e6971724e4582b3cfa49f03f0c32f041daff31b",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}