http://{{hostname}}/ara/api/data/v1/usergroups/:id/users { "$schema": "http://domain:port/ara/api/data/v1/schemas/AssignUsersCommand_Parameter.json", "users": ["2000/RVJ2FE/DE"] }
"users": ["client/user/department","client2/user2/department2",...]
"users": {"name":"client/name/department"}