cardinity_payment_auth.xml

<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="1column"
      xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <referenceContainer name="content">
        <block class="Cardinity\Magento\Block\AuthBlock" name="cardinity" template="auth.phtml" cacheable="false"/>
    </referenceContainer>
</page>