title: Mongoose: Binary subtype 4 to string
body: <p>I have query on my mongo that is returning an UUID as a Bin4. How do I convert it to a string?</p>
  
  <pre><code>Binary {
    _bsontype: 'Binary',
    sub_type: 4,
    position: 16,
    buffer: &lt;Buffer 93 02 fc 42 a9 6b 47 7b ab 63 5c 78 c1 07 3a 2c&gt; }
  </code></pre>
  
  <p>What I am expecting as return is something like this <code>9302FC42-A96B-477B-AB63-5C78C1073A2C</code></p>
  
  <p>I've tried <code>JSON.parse(JSON.stringify(userData._id))</code> and what I get is this <code>kwL8QqlrR3urY1x4wQc6LA==</code></p>
  
  <p>What else can I do?</p>