{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329869",
    "entityType": "User",
    "nonce": "0xd4d4b3e4f996fd7e0bc9c3041398da2abebf5a187c6bcb8e37639cbe6364037c",
    "signature": "0xb36c4595261dd1c1a446a750eac79bd479c5234247c84658b1bb0c2059ad2c9d3cf696d3660b1d0907b1350d1e7af7165a030bd4c273102187272ebfa9f390b71c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}