{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "239411",
    "entityType": "User",
    "nonce": "0xa2b84f6d0d197d812009f3ba270f4a83c8683322dc5f9243bc45a4335205fe3f",
    "signature": "0x3b05eb98e1ea08b665a5adf628a76db30fc0b79a9b8b4bb74c21782e2ceb84f4352338836e99bd42c8c78149138856d7967238c4aa8b31b5fa1b77a279cc12291b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}