An effective episode edit creates a subsequent version. Adding an existing episode to a dataset does not emit this event.
POST
{ "type": "episode.updated", "timestamp": "2019-08-24T14:15:22Z", "attemptedAt": "2019-08-24T14:15:22Z", "webhookEventId": "string", "webhookId": "string", "projectId": "string", "episode": { "id": "string", "version": 1, "changedFields": [ … ] } }