{
	"bsonType": "object",
	"permission": {
		"create": false,
		"delete": false,
		"read": false,
		"update": false
	},
	"properties": {
		"_id": {
			"description": "ID，系统自动生成"
		},
		"expired": {
			"bsonType": "timestamp",
			"description": "过期时间"
		},
		"value": {
			"description": "值"
		}
	},
	"required": [
		"value",
		"expired"
	],
	"version": "0.0.1"
}