Laravel Pusher for websocket message via postman

<?php

namespace App\Events;

use App\Models\Message;
use Illuminate\Broadcasting\Channel;
use Illuminate\Broadcasting\InteractsWithSockets;
use Illuminate\Broadcasting\PresenceChannel;
use Illuminate\Broadcasting\PrivateChannel;
use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
use Illuminate\Foundation\Events\Dispatchable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Support\Facades\Log;

class NewMessageSent implements ShouldBroadcast
{
    use Dispatchable, InteractsWithSockets, SerializesModels;

    private $senderId;
    private $receiverId;
    private $message;

    /**
     * Create a new event instance.
     */
    public function __construct(string $message)
    {
        Log::info('Message received: ' . $message);
    }

    /**
     * Get the channels the event should broadcast on.
     *
     * @return array<int, \Illuminate\Broadcasting\Channel>
     */
    public function broadcastOn(): array
    {
        return [
            new Channel('chatName'),
        ];
    }

    /**
     * Broadcast's event name
     *
     * @return string
     */
    public function broadcastAs(): string
    {
        return 'client-messagesent';
    }

}

I am sending messages from postman via url ws://domain:6001/app/********?protocol=7&client=js&version=4.3.1

message:

{
  "event": "client-messagesent",
  "channel":"chatName",
  "data": {
    "message": "Hello from Postman WebSocket!"
  }
}

but no log entry is being made but at websocket console messages are showing