User Generated Content

Hello, we would like to mark our comments as User Generated Content (UGC) for Google so that they can see that from this section onwards they are reviews. 

Where and how can we share this? Can we write this down in function.php? 

Here is our code:

add_filter( 'rank_math/snippet/rich_snippet_recipe_entity', function( $entity ) {

    $entity['aggregateRating'] = [

        '@type' => 'AggregateRating',

        'ratingValue' => $score = get_post_meta(get_the_ID(), '_glsr_average', true),

        'ratingCount' => $count = get_post_meta(get_the_ID(), '_glsr_reviews', true),

        'bestRating' => '5',

        'worst rating' => '1',

    ];

    return $entity;

});

Thank you and best regards

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