{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x002cc95baead4021077c0e981451b76f6a98e8435cc6ded70867e2e011f83a38",
    "signature": "0x49cb0c72a547a4a7feb3aa8ad52e6eea9e11ee0ea4eade78df091d75ac441f1e610267eec73a4b06984eddb19f79cb0af9f0aaaf14618206eda993d4dcd854bd1b",
    "signer": "0x4C0e8973cC8C5BB66d6627C8D489e336f0825A94",
    "userId": "939865626"
  }
}