{
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  "type": "order.completed",
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  "data": {
    "checkoutId": "<string>",
    "totalAmount": 123,
    "currency": "<string>",
    "items": [
      {
        "id": "<string>",
        "productId": "<string>",
        "productName": "<string>",
        "quantity": 123
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    ],
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}