una/modules/boonex/payment/template/subscribe.html

<button class="bx-btn bx-btn-img bx-payment-subscribe bx-def-margin-sec-left-auto" onclick="javascript:__js_object__.subscribe(this, __vendor_id__, '__vendor_provider__', __module_id__, __item_id__, __item_count__, '__redirect__', '__custom__')">
    <i class="sys-icon credit-card"></i>__txt_subscribe__
</button>
__js_content__