public override void SdkSocialInvite(Dictionary <string, string> inviteDetail)
    {
        Debug.Log("SdkSocialInvite: handle social invite");

        string subject      = inviteDetail["subject"];
        string longMessage  = inviteDetail["long"];
        string shortMessage = inviteDetail["short"];
        string linkUrl      = inviteDetail["link"];
        string pictureUrl   = inviteDetail["picture"];

        Debug.Log("subject = " + subject + "\n" +
                  "longMessage = " + longMessage + "\n" +
                  "shortMessage = " + shortMessage + "\n" +
                  "linkUrl = " + linkUrl + "\n" +
                  "pictureUrl = " + pictureUrl + "\n");

        // handle social invite
        GameObject  _fuelHandler       = GameObject.Find("FuelHandlerObject");
        FuelHandler _fuelHandlerScript = _fuelHandler.GetComponent <FuelHandler>();

        _fuelHandlerScript.onSocialInviteClicked(inviteDetail);
    }