Displaying license information

sample.php

<?php

$license = get_option( WNT_FUNCTION );

if ( empty( $license ) ) {
    
    // No license has been activated

    // You can display the activation form

} else {
    
    // Lets parse the license

    $license = json_decode( $license );

    // Echo license ACTIVATION ID
    echo $license->activation_id;

    // Echo ACTIVATION DATE
    echo date( get_option( 'date_format' ), $license->activation_id );

    // Echo expiration
    if ( $license->expire )
        echo date( get_option( 'date_format' ), $license->expire );    

    // HERE YOU CAN DISPLAY A DEACTIVATION BUTTON

}

add_filter(
    'woocommerce_license_key_meta_value',
    function( $meta, $item, $product, $order ) {

        $duration = wc_get_order_item_meta( $item->get_id(), 'subscription_duration', true );

        $meta['expire'] = $duration == 1
            ? strtotime( '+1 month' )
            : strtotime( '+1 year' );

        return $meta;
    },
    99,
    4
);