Get apimerchants

curl --request GET \
  --url https://app.herondata.io/api/merchants/{heron_id} \
  --header 'Authorization: Basic <encoded-value>'

{
  "merchant": {
    "categories": [
      {
        "code": "7311",
        "description": "Advertising services",
        "slug": "advertising_services"
      }
    ],
    "group_id": "Uber",
    "heron_id": "mrc_H4woHtq2y7hw3GLRh4hv62",
    "icon_url": "<string>",
    "is_priority": true,
    "logo_url": "<string>",
    "name": "<string>",
    "url": "<string>"
  }
}