{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "838777725",
    "entityType": "User",
    "nonce": "0x943d348755789ed724975eec9ce64145087c54cdf33ac16728af57df593946f3",
    "signature": "0xe39adb7ee0e208b77c7aec5fced5f8df9eeec62f53b2ef1de987780ecebb440b0158b6a5369619ba5e19bfbd8e07156f1091e30a7a7d75cfb69c003a667ce6be1b",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}