Update email group subscriptions after contact email change using REST API

Hi,

after update of contact's email all subscriptions are lost (they left attached to the old email).

I succeed to copy them from the old email to the new one using several updates: "/data/contact/" + contactId + "/email/group/" + groupId + "/subscription" looping over the groups.

But I cannot use this because of the platform limitations which allow me to make up to 8 requests per page.

Is it possible to update all groups at once?

Thanks,

Rumyana