I want to extract serilazed data and update/insert values to metabox string meta

Hi.

I am using another front end plugin to upload images.
This plugin saves meta values of image ids in serialized format.
Like this: image_upload_other: 4:{i:0;s:3:"937";i:1;s:3:"938";i:2;s:3:"939";i:3;s:3:"940";}

I need these values to insert to post meta for Metabox.io format in separate string values after update or insert post with a function.

Like this:
image_upload_mb: 937
image_upload_mb: 938
etc...

SO i need a function code to do this very much 🙂

Any help will be great.

Thanks...