curl --request DELETE \
  --url https://prod.truv.com/v1/templates/{template_id}/ \
  --header 'X-Access-Client-Id: <api-key>' \
  --header 'X-Access-Secret: <api-key>'

{
  "error": {
    "code": "authentication_failed",
    "message": "No such token"
  }
}