patch https://elastic.messangi.me/qarth/v3/lists//subscribers/bulk
This endpoint helps you to partially update existing subscribers from a list identified by its unique ID. Edits only the fields sent in the request all subscribers, the other fields remains the same. If field is not present for a subscriber, then it's added as new. Extra filters can be added using list's columns (e.g. email[like]=[email protected], age[gt]=30).