在将订单分配给具有流明的用户时发送推送通知

Question

我需要一些帮助，当我向特定用户分配订单时，我需要向他发送推送通知，以通知他的“订单”页面中有订单，分配订单时一切都很好，但它没有发送推送，在下面，我显示了我在Lumen Laravel中开发的Controller的代码，基本上，我需要在更新订单状态时向用户设备发送通知。谢谢

function sendMessage(){
        $content = array(
            "es" => 'THE MESSAGE'
            );

        $fields = array(
            'app_id' => "MY-APP-ID",
            'include_player_ids' => array("USER-ID"),
            'contents' => $content
        );

        $fields = json_encode($fields);
        print("\nJSON sent:\n");
        print($fields);

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, "https://onesignal.com/api/v1/notifications");
        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json; charset=utf-8'));
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
        curl_setopt($ch, CURLOPT_HEADER, FALSE);
        curl_setopt($ch, CURLOPT_POST, TRUE);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);

        $response = curl_exec($ch);
        curl_close($ch);

        return $response;
}

public function update(Request $request)
     { 
    $product = DB::table('tableOrders')
        ->where('id', $request->id)
        ->update(['delivery_boy_id' => $request->delivery_boy_id, 'status' => $request->status]);
    return response()->json($product);
$response = sendMessage();
    $return["allresponses"] = $response;
    $return = json_encode( $return);

    print("\n\nJSON received:\n");
    print($return);
    print("\n");
}