Get Notification Entities
Retrieves the entities (members, cards, boards, lists, etc.) associated with a specific Trello notification. Returns an ordered list of entity objects that together describe what happened in the notification. This is useful for building human-readable notification descriptions and activity feeds. For example, a 'mentionedOnCard' notification returns entities like: [member, "mentioned you on", card] which can be combined to display: "John mentioned you on 'My Card'" Note: Requires a valid notification ID that belongs to the authenticated user.