curl --request GET \
  --url https://public-api.sessionboard.com/v1/event/{eventId}/fields \
  --header 'x-access-token: <api-key>'

[
  {
    "id": "<string>",
    "internal_name": "<string>",
    "public_name": "<string>",
    "field_type": "<string>",
    "field_source": "<string>",
    "contains_pii": true,
    "scope": "<string>",
    "createdAt": "<string>",
    "updatedAt": "<string>"
  }
]