Postman / Zapier - Add group to category


Now I will not pretend I am any skilled dev as cannot really code but nifty with tools such as postman & zapier.

I am trying to add a group to a category - now I know I can do it in postman with the following:

permissions[GROUPNAME]: 1

However with Zapier I cannot use a variable in the Key field

Is it possible to specify the groupname and permission value in the value and have just permissions in the key - I have tried numerous ways but cannot see a way around it.

I can also see on the output it has -
group_permissions: [{"permission_type":1,"group_name":"GroupName"}]

However cannot work with that either