public void openCard(int turnIndex, int cardIndex, DavinciController.ActionCallback callback)
    {
        UserGameData user = userList[turnIndex];

        foreach (GameObject obj in playUserList)
        {
            UserPanel userPanel = obj.GetComponent <UserPanel>();
            if (userPanel.userData.email.Equals(user.email))
            {
                userPanel.openCard(cardIndex, callback);
                break;
            }
        }
    }