我们已经成功地为我们的电子邮件实现了Gmail注解。然而，随着黑色星期五的到来，我们希望在目录卡中使用多个图像。我找到了reference guide，它调用了项目属性等，但我不知道如何将其编码到JSON-LD中。我使用250 ok/Validity的脚本作为基础，谁能帮我编码或提供样本代码的目录卡注解？

<script type="application/ld+json">
[{
    "@context": "http://schema.org/",
    "@type": "Organization",
    "logo": "http://250ok.com/img/favicon-black.png"
},{
    "@context": "http://schema.org/",
    "@type": "EmailMessage",
    "subjectLine": "Time to renew your 250ok Account"
},{
    "@context": "http://schema.org/",
    "@type": "DiscountOffer",
    "description": "10% off",
    "discountCode": "RENEW2019",
    "availabilityStarts": "2020-11-06T08:00:00-07:00",
    "availabilityEnds": "2020-11-25T08:00:00-07:00"
},{
    "@context": "http://schema.org/",
    "@type": "PromotionCard",
    "image": "https://s3.amazonaws.com/250ok-wordpress/wp-content/uploads/2018/12/03212604/promo_sample.png"
}]
</script>

Example Image of the Catalog Card Carousel