应用: 快手
任务: 打开快手，去'同城'tab，找到团购优惠，进入店铺‘麦当劳’，收藏店铺
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: CLICK
step_id: 2
action: CLICK
step_id: 3
action: CLICK
step_id: 4
action: KEY_BACK