Added to favorites

{
  "attributes": {
    "product_id": "PROD-456",
    "product_name": "Wireless Headphones",
    "product_url": "https://example.com/products/headphones",
    "product_image_url": "https://example.com/images/headphones.jpg",
    "sku": "HP-002",
    "variant_id": "VAR-BLUE",
    "variant_name": "Blue",
    "brand": "CocoonSound",
    "category": "Electronics > Audio",
    "product_type": "Accessories",
    "price": 249.99,
    "compare_at_price": 299.99,
    "currency": "USD",
    "discount_amount": 50.00,
    "discount_percentage": 16.67,
    "in_stock": true,
    "inventory_quantity": 12,
    "low_stock_threshold": 5,
    "total_favorites": 5,
    "favorites_list_id": "fav_list_123",
    "added_from": "product_page",
    "previously_favorited": false
  }
}