curl --request GET \
  --url https://api.fungies.io/v0/payments/{paymentId} \
  --header 'x-fngs-public-key: <api-key>'

{
  "status": "<string>",
  "data": {
    "payment": {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "number": "<string>",
      "createdAt": 4503599627370495,
      "object": "payment",
      "value": 0,
      "tax": 0,
      "fee": 0,
      "currency": null,
      "currencyDecimals": null,
      "userId": null,
      "user": null,
      "orderId": null,
      "orderNumber": null,
      "order": null,
      "subscriptionId": null,
      "subscription": null,
      "discount": null,
      "invoiceNumber": null,
      "invoiceUrl": null,
      "charges": null
    }
  }
}