curl --request GET \
  --url https://api.loopreturns.com/api/v1/allowlists/{id} \
  --header 'X-Authorization: <api-key>'

{
  "id": 1,
  "type": "order",
  "value": "[email protected]",
  "secondary_value": "[email protected]",
  "created_at": "2023-06-09 00:00:00"
}