title: Convert a Ruby Hash into JSON (without escape characters)
body: <p>I have a Hash:</p>
  
  <pre><code>my_hash = {"bob.johnson@example.com"=&gt;{"first"=&gt;"Bob", "last"=&gt;"Johnson"}, "lisa.dell@example.com"=&gt;{"first"=&gt;"Lisa", "last"=&gt;"Dell"}}
  </code></pre>
  
  <p>When I try to serialize it with <code>my_hash.to_json</code> this is what I get:</p>
  
  <pre><code>"{\"bob.johnson@example.com\":{\"first\":\"Bob\",\"last\":\"Johnson\"},\"lisa.dell@example.com\":{\"first\":\"Lisa\",\"last\":\"Dell\"}}"
  </code></pre>
  
  <p>How could I convert a Hash to JSON format without getting the escaping characters?</p>