{
  "schema": {
    "bsonType": "object",
    "required": ["user_id"],
    "properties": {
      "_id": {
        "description": "ID，系统自动生成"
      },
      "user_id": {
        "bsonType": "string",
        "description": "用户id，参考uni-id-users表"
      },
      "ua": {
        "bsonType": "string",
        "description": "userAgent"
      },
      "device_id": {
        "bsonType": "string",
        "description": "设备唯一标识(需要加密存储)"
      },
      "vendor": {
        "bsonType": "string",
        "description": "设备厂商"
      },
      "push_clientid": {
        "bsonType": "string",
        "description": "推送设备客户端标识"
      },
      "imei": {
        "bsonType": "string",
        "description": "国际移动设备识别码IMEI(International Mobile Equipment Identity)"
      },
      "oaid": {
        "bsonType": "string",
        "description": "移动智能设备标识公共服务平台提供的匿名设备标识符(OAID)"
      },
      "idfa": {
        "bsonType": "string",
        "description": "iOS平台配置应用使用广告标识(IDFA)"
      },
      "model": {
        "bsonType": "string",
        "description": "设备型号"
      },
      "platform": {
        "bsonType": "string",
        "description": "平台类型"
      },
      "create_date": {
        "bsonType": "timestamp",
        "description": "创建时间",
        "forceDefaultValue": {
          "$env": "now"
        }
      },
      "last_active_date": {
        "bsonType": "timestamp",
        "description": "最后登录时间"
      },
      "last_active_ip": {
        "bsonType": "string",
        "description": "最后登录IP"
      }
    }
  },
  "index": []
}