How to add first script for Google Tag Manager to Genesis on Wordpress (closest to head tag as possible)

add gtm to genesis for wordpress (part 1)

//* add Google Tag Manager after opening body tag for genesis on wordpress (part 1)

add_action( 'wp_head', 'add_custom_google_tag_manager_1', 1 );
function add_custom_google_tag_manager_1() {
    //* replace XXXXXXX with your GTM tracking ID
    ?>	  
<!-- Google Tag Manager -->
<script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
})(window,document,'script','dataLayer','GTM-XXXXXXX');</script>
<!-- End Google Tag Manager -->  
	<?php
}