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                            "BNS": 0.0,
                            "NSBH": 0.0,
                            "Terrestrial": 1.35e-07
                        },
                        "skymap_version": 0,
                        "central_frequency": null
                    },
                    "alert_type": "PRELIMINARY",
                    "sequence_num": 1,
                    "time_created": "2023-05-20T22:49:12Z",
                    "superevent_id": "S230520ae",
                    "external_coinc": null
                },
                "message_text": "",
                "published": "2023-05-20T22:49:14.185373Z",
                "message_parser": "IGWN Alert Avro Parser v1",
                "retracted": false,
                "created": "2023-05-20T22:49:14.185416Z",
                "modified": "2023-05-20T22:49:14.192279Z"
            }
        }
    ]
}