Как задать fastcgi_keep_conn on для определенного location?

location / {
			try_files $uri $uri/ /index.php$is_args$args;
		}

location /sse-stream {
			fastcgi_keep_conn     on;
			gzip                 off;
			proxy_buffering      off;
		}

location ~ \.php$ {
			try_files        $uri =404;
			fastcgi_pass     unix:/Applications/MAMP/Library/logs/fastcgi/nginxFastCGI.sock;
			fastcgi_param    SCRIPT_FILENAME $document_root$fastcgi_script_name;
			include          fastcgi_params;
		}