Re-pointing images to cloud storage

We want to migrate our media uploads to azure blob storage. We’ve copied the images across, and updated all the records in the wp_posts table so the urls all point to the new location. Images in posts appear correctly.

There are also image references in the wp_postmeta table for records where the meta_key is _wp_attachment_metadata. references in these records are much more complex because the references are stored as relative references with a php serialized object. To re-point the image references, I need to add a property called “url” that points to the correct image which would be an absolute reference because it exists outside of the wordpress server. Can the Velvet Blues Update URLs plugin do this? It’s not the traditional search and replace.