{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105562689",
    "entityType": "User",
    "nonce": "0xbdb17ca20593340579b6e7cb52740d1dc3b300d5d3122a52a59e1bdbb554b489",
    "signature": "0xc1b70c273f9af87aa92e8b44c0b79b52cc54f0895c643e73d75d5d787a4819c3605db6ea5ec71811d0b3ca1e1c2d1bb4189e347cabd98a69984dc5b351f57dc01c",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}