https://52c66f6e2092094e1ec8c617ae895046.r2.cloudflarestorage.com/private/?X-Amz-Expires=3600&X-Amz-Date=20260215T053143Z&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=add87b740b51238b169d9650a2b29adb%2F20260215%2Fauto%2Fs3%2Faws4_request&X-Amz-SignedHeaders=host&X-Amz-Signature=48f2d5f9dfad563c247502eeba6721f048f65c824f8632424893bc18380bcfd7