title: Push notification with pusher beam, unable to send data/payload
body: <p>I am using following php sdk for generating pusher beam push notification. but there is not information provided in the sdk docs on how to send data/payload along with it. the notification is bean sent correctly but I am unable to send data: please guide me how we can send the data: it is showing hasData as false in beam console, please check:
  <a href="https://i.stack.imgur.com/8eBIU.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/8eBIU.png" alt="enter image description here" /></a></p>
  <p>php sdk i am using : <a href="https://github.com/pusher/push-notifications-php" rel="nofollow noreferrer">https://github.com/pusher/push-notifications-php</a></p>
  <p>my code look like this:</p>
  <pre><code>$pushNotification = new PushNotifications([
                  'instanceId' =&gt; env('BEAM_INSTANCE_ID'),
                  'secretKey' =&gt; env('BEAM_PRIMARY_KEY')
              ]);
              $pushNotification-&gt;publishToInterests(
                  ['message-notification'],
                  [
                      &quot;apns&quot; =&gt; [
                          &quot;aps&quot; =&gt; [
                              &quot;alert&quot; =&gt; &quot;Message Received&quot;,
                          ],
                      ],
                      &quot;fcm&quot; =&gt; [
                          &quot;notification&quot; =&gt; [
                              'title' =&gt; 'some title',
                              'body' =&gt; 'some body',
                              'data' =&gt; 'some data', //passing data here but not working
                           ],
                      ],
                  ]
              );
  </code></pre>