The settlement/status_change event will send an update when the settlement status has been updated
Response Schema:
String event_type ## Event type will be "settlement/status_change"
String id
String end_date ## Date Format: 2021-01-01T00:00:00
String external_id
String requested_disbursement_date ## Date Format: 2021-01-01T00:00:00
String start_date ## Date Format: 2021-01-01T00:00:00
String status
String stm_client_id