curl --request GET \
  --url https://api.mysubwallet.ng/api/esim/catalog/by-country/{id} \
  --header 'Authorization: <api-key>'

{
  "status": "success",
  "data": [
    {
      "id": "esim_abc",
      "name": "Spain 1GB - 7 Days",
      "data_quantity": 1,
      "data_unit": "GB",
      "package_validity": 7,
      "package_validity_unit": "Day",
      "price_ngn": 2500,
      "package_type": "DATA-ONLY"
    }
  ]
}