{`api_key=sk_xxx&body=&method=GET&nonce=a1b2c3d4e5f67890&path=/api/open/v1/orders/O123×tamp=1721450000`}
- {`api_key=sk_xxx&body={"order_no":"O123","ship_status":"success"}&method=POST&nonce=...&path=/api/open/v1/orders/ship-notify×tamp=1721450000`}
- {`timestamp
+nonce
+POST
+/api/open/v1/orders
+sha256(body)`}
{signPython}