How to update a custom role using Management API?

[Former Community Member]

I am unable to remove the get from these two permissions using Management API for a custom role. I am seeing Forbidden error.

{ "organization": "prod", "path": "/environments", "permissions": [ "get" ] },

{ "organization": "prod", "path": "/environments/*", "permissions": [ "get" ] },

Also what is the path to remove ability to CRUD "Spec"?