users = {
    1: {'state': 'apple', 'menu_id': 123, 'args':['some data']},
    2: {'state': 'something', 'menu_id': 321}
    3: {'state': 'banana', 'menu_id': 666, 'args':['trash', 'temporary']}
}

s = users.copy()
for k,v in obj.items(): v.pop('args', None)

s1 = {k: {'state': v['state'], 'menu_id':v['menu_id']} for k,v in users.items()}

s2 = {k: {p: q for p,q in v.items() if p != 'args'} for k, v in users.items()}