This call returns modified environment object:
{ "id": "ce373a477f211e187a55404a662f968", "name": "env1-changed", "created": "2010-11-30T03:23:42Z", "updated": "2010-11-30T03:23:44Z", "tenant_id": "0849006f7ce94961b3aab4e46d6f229a", "version": 0 }
