| Name | Description | Type | Additional information |
|---|---|---|---|
| backupkey |
备份唯一KEY |
string |
None. |
| openid |
用户ID |
string |
None. |
| appkey |
商户Key |
string |
None. |
| timestamp |
时间戳 |
integer |
None. |
| noncestr |
随机字符，使签名不可预测 |
string |
None. |
| sign |
签名信息 |
string |
None. |