Nginx proxying 1935 to a subdirectory path?

I have Ant Media Server running. It typically runs on the standard RTMP port 1935. I've changed Ant to 11935 (works currently), and I want nginx to recieve 1935 and re-route it to 11935 (with a subdir).

So instead of streaming to rtmp://server.com/LiveApp/[key] you can stream to rtmp://server.com/[key]

nginx.conf

stream {
  server {
    listen 1935;
    proxy_pass 127.0.0.1:11935;
    proxy_buffer_size 32k;
  }
}

sudo ufw status

1935/tcp                   ALLOW       Anywhere
1935/tcp (v6)              ALLOW       Anywhere (v6)

This works currently. I can stream to rtmp://server.com/LiveApp/[key] and it's fine. But now I want to proxy rtmp://server.com/[key] -> rtmp://server.com:11935/LiveApp/[key]

My (failed) attempt at adding it as an http proxy:

server {
  listen 1935;
  server_name _;

  location ~/(.*)$ {
    proxy_set_header X-Real-IP  $remote_addr;
    proxy_set_header X-Forwarded-For $remote_addr;
    proxy_set_header Host $host;
    proxy_pass localhost:11935/LiveApp/$1;
  }
}