Insert complex data structure

db.users.insert({
    "name" : "Foo",
    "email" : "foo@company.com",
    "technologies" : [
        "Perl",
        "Python",
        "JavaScript",
        "SQL",
        "NoSQL",
        "MongoDB"
    ],
    "a" : {
        "b" : {
            "c" : 42
        }
    }
})