{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8c8a371906eeda884e5770468ac7b4971a72b1f5d00a16b8f69eb3617334cd7e",
    "signature": "0xe2886f831d8fd880022dbb7aae6c0aafb85c7f6fd9bc14f8827bda78bf6041c63b8b586fba0b1e167cd3fea803e6d8b668199687d36a43ee4127efd09fa1d6881c",
    "signer": "0x02bAf8A8C0604b1b956eE4742A065D9247e822F6",
    "userId": "258694237"
  }
}