{
  "data": {
    "createPurchaseOrder": {
      "purchaseOrder": {
        "id": "po_8f2a4b6c-1d3e-4f5a-9b7c-2e8d0f1a3b5c",
        "_etag": "W/\"2024-01-15T10:30:00.000Z\"",
        "currency": {
          "id": "cur_USD"
        },
        "currencyId": "cur_USD"
      }
    }
  }
}