The event is triggered when a label is added to a chat

Example payload

{
  "id": "evt_01aaaaaaaaaaaaaaaaaaaaaaaa",
  "timestamp": 1634567890123,
  "session": "default",
  "metadata": {
    "user.id": "123",
    "user.email": "email@example.com"
  },
  "engine": "WEBJS",
  "payload": {
    "labelId": "1",
    "chatId": "11111111111@c.us",
    "label": {
      "id": "1",
      "name": "Lead",
      "colorHex": "#ff9485"
    }
  },
  "me": {
    "id": "11111111111@c.us",
    "lid": "123123@lid",
    "jid": "123123:123@s.whatsapp.net",
    "reachoutTimelock": {
      "enforcementType": "RESTRICT_ALL_COMPANIONS",
      "isActive": true,
      "timeEnforcementEnds": 1784477333
    },
    "messageCapping": {
      "cappingStatus": "FIRST_WARNING",
      "totalQuota": 1000,
      "usedQuota": 640,
      "cycleStart": 1782874800,
      "cycleEnd": 1785553199,
      "mvStatus": "NOT_ELIGIBLE",
      "oteStatus": "NOT_ELIGIBLE"
    }
  },
  "environment": {
    "version": "YYYY.MM.BUILD",
    "engine": "WEBJS",
    "tier": "PLUS",
    "browser": "/usr/path/to/bin/google-chrome",
    "platform": "linux/x86"
  }
}