Getting unauthorized error when trying to send a request on Signed REST API from C++ code

Recently I`ve figured out how to generate the signature thanks to the C++ Binance example(, but started getting other error:
“{"code":-1002,"msg":"You are not authorized to execute this request."}”

Here`s all the information about created request:
Query String: timestamp=1698606011592
Request information:
Port: 443
Path: /sapi/v1/capital/config/getall?timestamp=1698606011592&signature=4d86d0b863d91c5dce1e380d0a1bf1e7942eaad8cd0cdb3261d7bd18deeb387e
Request Method: GET
Request URI: /sapi/v1/capital/config/getall?timestamp=1698606011592
Request Headers:
Content-Type: application/json

Everything works perfectly fine with the same parameters from Postman:

Please help me understand what may cause this error now

please try to send request by putting all parameters in URL.