curl --request GET \
  --url https://app.herondata.io/api/broker_submissions/api_keys \
  --header 'x-api-key: <api-key>'

[
  {
    "broker": "<string>",
    "broker_funder_api_key_heron_id": "<string>",
    "broker_funder_api_key_token": "<string>"
  }
]