{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "840653346",
    "entityType": "User",
    "nonce": "0x411d763598b8c7cea59cecf82e681782bd5172be8d8f9baf876efb9d1ea5f41c",
    "signature": "0xfb363861d3e490e6e6b8f9b15ce5c5cf4fc3c3e3eef7bd2851e3449d9d24e25837c19290474ed0c905ae060f285fa573cf4e5bec7088e8c12a1c23a24a5f25e91b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}