v3签名问题

请求地址：https://api.mch.weixin.qq.com/v3/certificates

1. {
2. "code": "SIGN_ERROR",
3. "detail": {
4. "detail": {
5. "issue": "sign not match"
6. },
7. "field": "signature",
8. "location": "authorization",
9. "sign_information": {
10. "method": "GET",
11. "sign_message_length": 66,
12. "truncated_sign_message": "GET\n/v3/certificates\n1612856095\na1fvv93qt5v3zs5m3fdz0sfnqknfjpm1\n\n",
13. "url": "/v3/certificates"
14. }
15. },
16. "message": "错误的签名，验签失败"
17. }

请问下这怎么解决呢？