How to use/replace wp_verify_nonce()

I have a piece of code that uses nonce to verify ajax calls.

on the page the nonce looked like this:

<script type='text/javascript' id='my-code-js-extra'>
/* <![CDATA[ */
var my_code_params = {"_nonce":"ac18832623"};
/* ]]> */
</script>

and ajax:

$.ajax({
        ...
        data: {
          action: 'my_code',
          nonce: my_code_params['_nonce'],
          ...
        },

and nonce was verified like this:

$nonce = $_REQUEST['nonce'];
if (wp_verify_nonce($nonce, 'my_code_nonce')) {

I followed the instruction on hot to convert custom nonce to esi.

This changed my nonce to:

<script type='text/javascript' id='my-code-js-extra'>
/* <![CDATA[ */
var my_code_params = {"_nonce":"<esi:include src='/?lsesi=nonce&esi=eyJhY3Rpb24iOiJtcGVzYV9ub25jZSIsIl9sc19zaWxlbmNlIjp0cnVlfQ%3D%3D&_hash=e32250e82e4ea03235ff13de63e087cb' as-var='1' />"};
/* ]]> */
</script>

Now my nonce is what I assume to be an ESI block.

My question is, how do I verify the nonce (or ESI block)?