How to enter more then 1 entity_id in action node data field?

In newest version of node-red-contrib-home-assistant-websocket (0.74.0) you need to enter Entity_id in the data field at an action node.
In older version I could enter more then one entity’s in the action node.
How to do that in the data field?

As before, using an array of entity_ids appears to work fine

{
   "entity_id":[
       "media_player.bedroom_display",
       "media_player.kitchen_display"
   ],
   "message":"My name is hanna",
   "language":"en-gb"
}

Thanks for the answer