{
  "activityId" : {
    "label" : "活动编号"
  },
  "quota" : {
    "label" : "活动名额"
  },
  "remainingQuota" : {
    "label" : "剩余名额"
  },
  "participationCount" : {
    "label" : "当前用户参加活动次数"
  },
  "statistics" : {
    "label" : "用户统计信息"
  }
}