Update Template

{
  "name": "Cart Recovery Email",
  "description": "Used after abandoned checkout events.",
  "subject_template": "Complete your order, {{first_name}}",
  "preview_text": "Your items are still reserved.",
  "editor_json": {
    "type": "doc",
    "content": []
  },
  "rendered_html": "<p>Your items are still reserved.</p>",
  "rendered_text": "Your items are still reserved."
}