{"choice_set":{"begin_at":null,"choices":[],"extra_choices":{},"extra_options":[{"type":"selectable_extra_option","name":"meeting_time","title":"만나는 시간","required":true,"required_for_check":false,"items":[{"title":"10:30 AM","description":null,"value":"10:30"}]}],"descriptions":{},"custom":false,"end_at":null},"display_original_price":false}