How to include Go-To Actions Gmail

I can not include the gmail go-to actions of the emails sent for tracking the order.

I have the following script in the head of the velocity template:

 <script type="application/ld+json">
     {
       "@context": "http://schema.org",
       "@type": "EmailMessage",
       "potentialAction": {
         "@type": "ViewAction",
         "target": "https://watch-movies.com/watch?movieId=abc123",
         "url": "https://watch-movies.com/watch?movieId=abc123",
         "name": "Watch movie"
       },
       "description": "Watch the 'Avengers' movie online"
     }
     </script>

 </head>

[1]: /storage/temp/10731-email-contactsbody.zip

Someone knows why the botton does not appear in the email?

Thanks!