{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "752193030",
    "entityType": "User",
    "nonce": "0xedbd87bad32d9c80eaf43f484d176ad1c82f6d4f764d8359b34d69939ce48d45",
    "signature": "0x650539d30b5036fbde2af248e92f7e0d85e08327df013f52136229bbbada315b44c029c805a935ba2c6f7a0ed6e4632d39adb49a837b746066d555558c628c481b",
    "signer": "0x8d9D00A94c3B1C9992e3CA4386AbBC6345B2E876",
    "userId": "396658415"
  }
}