/home2/mshostin/carnival.ms-hostingladz.com/app/Http/Controllers/SubscriberController.php
<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Models\Subscriber;

class SubscriberController extends Controller
{
    public function store(Request $request)
    {
        $request->validate([
            'email' => 'required|email|unique:subscribers,email',
        ]);

        Subscriber::create(['email' => $request->email]);
        return response()->json(['success' => 'Thank you for subscribing!']);
    }
}