| timestamp | String | M | string <= 13 characters ^[0-9][1-9][0-9]$ | 
|  |  |  | Time when a request is sent. UTC timestamp. The unit is second. | 
| method | String | M | string | 
|  |  |  | Value: "payment.queryorder" | 
|  |  |  | Set to 'payment.queryorder', fixed for this interface | 
| nonce_str | String | M | <= 32 characters \S+ | 
|  |  |  | Random character string containing a maximum of 32 characters, including uppercase letters, lowercase letters, digits, but not special characters. | 
| sign_type | String | M | Value: "SHA256WithRSA" | 
|  |  |  | Signature type. | 
| sign | String | M | <= 512 characters \S+ | 
|  |  |  | This signature is the sign of all the request parameters except the sign and sign_type. First ordered in alphabetical order and joined in a key=value format and joined together with '&' and are signed with the SHA256RSA algorithm. | 
| version | String | M | <= 4 characters \S+ | 
|  |  |  | Interface version number. Only support 1.0 now | 
| biz_content |  |  | object (AuthTokenResponseBizContent) | 
| appid | String(64) | M | <= 32 characters ^[A-Za-z0-9]+$ | 
|  |  |  | Application ID allocated to a merchant by Mobile Payment system. | 
| merch_code | String(128) | M | <= 16 characters ^[A-Za-z0-9]+$ | 
|  |  |  | Short code registered by a merchant with the Mobile Money. | 
| merch_order_id | String(64) | M | <= 64 characters ^[A-Za-z0-9]+$ | 
|  |  |  | The order number generated by the merchant side. It must be in the form of letters, numbers, and underscores. Other special characters are not allowed. | 
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