execute shortcodes within S-E-PHP shortcode

i’m using the code below to wrap page content and display it only if user is logged in:

if ( is_user_logged_in() && !is_null( $content )  )
	return $content;
return '';

and i apply it like:

[is_logged_in]
Some content here
[/is_logged_in]

the problem i’m having is that shortcodes within the content do not get executed:

[is_logged_in]
Some content here
[a_shortcode]
[/is_logged_in]

is there any way to execute shortcodes within content?

https://wordpress.org/plugins/shortcode-exec-php/