curl --request GET \
  --url https://api.example.com/vendor/customers/{id} \
  --header 'Authorization: Bearer <token>'

{
  "customer": {
    "id": "<string>",
    "company_name": "<string>",
    "first_name": "<string>",
    "last_name": "<string>",
    "email": "<string>",
    "phone": "<string>",
    "has_account": true,
    "groups": [
      {
        "id": "<string>",
        "name": "<string>"
      }
    ]
  }
}