{
  "schema": {
    "bsonType": "object",
    "required": ["_id", "value"],
    "properties": {
      "_id": {
        "bsonType": "string",
        "description": "自动生成的id"
      },
      "app_id": {
        "bsonType": "string",
        "description": "客户端DCloud AppId"
      },
      "device_id": {
        "bsonType": "string",
        "description": "客户端设备id"
      },
      "private_key": {
        "bsonType": "string",
        "description": "私钥，仅保存在云端"
      },
      "public_key": {
        "bsonType": "string",
        "description": "公钥，下发给客户端使用"
      },
      "create_date": {
        "bsonType": "timestamp",
        "description": "创建时间"
      }
    }
  },
  "index": [
    {
      "IndexName": "app_device_id_",
      "MgoKeySchema": {
        "MgoIndexKeys": [
          {
            "Name": "app_id",
            "Direction": "1"
          },
          {
            "Name": "device_id",
            "Direction": "1"
          }
        ],
        "MgoIsUnique": true
      }
    }
  ]
}