Serialize object to json dict

        :return: dict

def to_json(self):
        """
        Serialize object to json dict

        :return: dict
        """
        res = dict()
        res['Count'] = self.count
        res['Messages'] = self.messages
        res['ForcedState'] = self.forced
        res['ForcedKeyboard'] = self.keyboard
        res['Entities'] = list()
        for item in self.entities:
            res['Entities'].append(item.to_json())
        res['ForcedMessage'] = self.forced_message
        return res