Change author data within article schema

Hi,
I’d like to have specific author info added to the article schema markup and use the following hook:

add_filter( ‘wpseo_schema_person_user_id’, function() {
return 27; // user id 27
} );

As a result, the author piece within the article markup changes from @type Person to @type Thing with only @id being specified (missing ‘name’ triggers error in structured data testing tool) and a **separate** schema markup @type Person with the intended data of user id 27 is added.

How can I just show alternative user data but keep the author embedded within the article markup? Thank you.