{
  "event_id": "<string>",
  "category": "<string>",
  "subcategory": "<string>",
  "title": "<string>",
  "klsi_id": "<string>",
  "klsi_series_ticker": "<string>",
  "poly_id": "<string>",
  "poly_series_ticker": "<string>",
  "strike_date": 123,
  "exchange": "<string>",
  "delphi_id": "<string>"
}