URL.findOne().exec(function (err, doc) {
    if(err){
      console.log('Error: ', err);
    }
    console.log(doc);
  });

>>>> print out   { _id: 556656fc0fe0c9d01bed7696, __v: 0 }
but i want to access

{
    "_id": {
        "$oid": "556656fc0fe0c9d01bed7696"
    },
    "profileUrl": "www.google,com",
    "__v": 0
}