{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x18adb94e7e8351731c739e1564aafea30f0f5986406f2b43413f2a2c55e9aa07",
    "signature": "0x0f9ef03bb7cecfa28417a7cd19ae4f79042b09085139e44eee0f5f1dc3a7ab7d5d44412eb630e47c08e2ecdd63fc4682ab7d3d07617c56f94f5fb11bec1645271b",
    "signer": "0x9731c27a228046e65489b08a1C3f1A64f7093B55",
    "userId": "848409996"
  }
}