Changing master page via REST

Hi all,

is it possible to change the master page via REST and if so how can I do it?

I automatically create subsites based on a custom site template via a SPD-workflow. Unfortunately my site template is based on the teamsite, therefore the custom masterpage of my root site isn't pushed to my subsites.

I saw that the masterpage url was accessible via rest: _api/web/masterurl. Now I would like to change it by making a rest call.

Thanks,
Maarten