db.users.find({ username: 'jim' }, { password: 0 })
        .sort({ created_at: -1 })
        .skip(2)
        .limit(1)

mongoexport -d test -c users -q '{ "username": "jim" }, { "password": 0 }' --fields='username,created_at' --sort '{ "created_at": -1 }' --skip 2 --limit 1 --out exported_users.json