{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "949295002",
    "entityType": "User",
    "nonce": "0x58ba446fcfb87dc80cd3c851ba9e578852a26bc57f956d984e204e6a16c2c380",
    "signature": "0x394c9c3d77fe4edee50369c99bedc17e6779fe7ff73ed33463cf62dc1b07d65752d3b049c6d69356fe0ab959542c296723c4ba36a26280391376f54f6f9c2e3e1b",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}