matrix-doc/event-schemas/examples/m.room.message$m.emote

{
  "$ref": "core/room_event.json",
  "type": "m.room.message",
  "content": {
    "body": "thinks this is an example emote",
    "msgtype": "m.emote",
    "format": "org.matrix.custom.html",
    "formatted_body": "thinks <b>this</b> is an example emote"
  }
}