{
  "display_name": "example_value",
  "sku": "example_value",
  "unit_price": 1000,
  "qty": 1,
  "item_image_url": "https://example.com/callback",
  "item_url": "https://example.com/callback",
  "categories": [
    [
      "example_value"
    ]
  ]
}