title: How to get first key from JObject?
body: <p>I am using <code>Newtonsoft.Json</code> in my project. I have <code>JObject</code> like this:</p>
  
  <pre><code>{
      "4781":"Name 1",
      "1577":"Name 2",
      "9973":"Name 3"
  }
  </code></pre>
  
  <p>I successfully parse it with <code>JObject.Parse()</code>. I need to get first key from this JObject ("4781"). How do I get it?</p>