curl --request GET \
  --url https://app.herondata.io/api/submission_parsers/{end_user_heron_id} \
  --header 'x-api-key: <api-key>'

[
  {
    "end_user_heron_id": "<string>",
    "result": {},
    "submission_parser": {
      "description": "<string>",
      "heron_id": "<string>",
      "name": "<string>",
      "slug": "<string>"
    }
  }
]