Variations Image Gallery

Dear XTEMOS, please help me. I have a T-shirt webshop and we have more colours and sizes. I use your theme woodmart. I like is so much. For the upload our products we use programically PHP script and REST API from our cms. I have 2 images every colours – one for main picture and one for gallery. I use Theme settings -> variable products -> Additional variations images (ON) and Data storage method is Parent product meta because Variations products meta is not working for me. In postmeta, woodmart_variation_gallery_data row I have a:2:{i:14260;s:5:”12395″;i:14258;s:5:”10621″;} syntax and this is work for me. i: are the variations ids. I would like use URLs for gallery pictures. Can i use urls? If I can please write me the right syntax.
And the second is if I use Variations products meta not Parent plase show me one right row from database with the right syntax.