NGINX RTMP module set a stream key?

Linux on Servers
1

So I figured out how to configure the nginx rtmp module for a self hosted restream solution but I haven’t figured out if I can set a stream key to prevent anyone from being able to stream to my multicast server.

here’s my nginx.conf

rtmp {
        server {
                # Im using 1936 since the usual rtmp port (1935) is used by another application
                listen 1936;
                chunk_size 4096;

                application live {
                        live on;
                        record off;
			push rtmp://url.domain/live/key
                }
        }
}

update:
making some here and found this reddit thread
https://www.reddit.com/r/nginx/comments/ttjge8/nginx_rtmp_server_handling_streams_from_new/