Change default 404 to 444

Hello everyone, recently I tried to replace the standard 404 page, where it says “Sorry, but the requested page could not be found.” to 444, and nothing worked for me in nginx.
I did this:
error_page 403 404 = 444 @blackhole;
location @blackhole {
return 444;
I want the server not to give any response when the download link has expired. Please tell me how to do this.
Default page is: