{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "436037627",
    "entityType": "User",
    "nonce": "0x3e87c66a8574a9b7cdfa8d63abbe772d03f228c9d74d3a4d7c4256a47f1ef2f2",
    "signature": "0xef795528affd7c62477915d0ae3d3bc87da37aed68eb001a0cf02e83782cfc217191e9db9ca99bf5203248463a418d9b2d2b38083664ea2f2821fe42557c40031b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}