EventHierarchyDto

{
    "parent_event_id": "507f1f77bcf86cd799439011",
    "is_rolled_back": false,
    "rolled_back_by_event_id": "507f1f77bcf86cd799439012",
    "rollback_payload": {
        "previous_state": "old_value",
        "original_content": "Original message text"
    }
}