OR WHERE IN in laravel Query Builder with sub query

How can make query builder for following Query

SELECT * FROM `rad_nas` WHERE nas_assigned = ".$id." 
OR nas_assigned IN 
(select franchise_id from rad_franchise_has_parent where parent_id=".$id." )
OR nas_id IN 
(select  fra_nas_id  from rad_franchise_has_nas where franchise_nas_id=".$id.")

via Chebli Mohamed