// ComebackEventId,ComebackEventSubId,DisplayName,RewardSetSubId,RequireDays,StartDatetime,EndDatetime
1,1,"カムバックボーナス",1,60,"2019/01/01","2019/01/01 23:59:59"
2,1,"カムバックボーナス",2,180,"2019/01/01","2019/01/01 23:59:59"
3,2,"カムバックキャンペーン",3,30,"2019/01/01","2019/01/01 23:59:59"
4,2,"カムバックキャンペーン",4,60,"2019/01/01","2019/01/01 23:59:59"