How to convert QJsonObject to QByteArray?

[HeerokNewbie]

I have QJsonObject and i want to convert it into QByteArray. Please tell me how can i perform this action?

    QByteArray byteData;
    
    QJsonObject Obj2 ={
        {"sign_in_provider", "password"}
    };

    QJsonObject Obj =
    {
        {"sub","8eZOneltblh5xAwtR7hSljN1hIj2"},
        {"aud","ChatApplication"},
        {"email","hgaur701@gmail.com"},
        {"email_verified",true},
        {"firebase",Obj2}
    };

    QJsonObject json {

        {"uid","8eZOneltblh5xAwtR7hSljN1hIj2"},
        {"token", Obj}
        };
    byteData = json; //Error here
    qDebug()<<byteData; 

[jsulm]

@HeerokNewbie
https://doc.qt.io/qt-5/qjsondocument.html#setObject
https://doc.qt.io/qt-5/qjsondocument.html#toJson