انضمام لمجموعة (V2)

{
"id": "evt_01...",
"timestamp": 1634567890123,
"session": "default",
"metadata": {
  "user.id": "123",
  "user.email": "email@example.com"
  },
"engine": "WEBJS",
"event": "group.v2.join",
"payload": {
  "chatId": "1234567890@g.us",
  "participants": {
    "0": "11111111111@c.us"
    }
  },
"me": {
  "id": "11111111111@c.us",
  "lid": "123@lid",
  "pushName": "Instance"
  }
}