Pagination on signed URL

You can write your own middleware replacing the framework's signed middleware on the Route, e.g. write the middleware to check the signature while ignoring the page query param:

// app/Http/SignedWithPaginator.php
public function handle(Request $request, Closure $next): Response
{
    abort_unless($request->hasValidSignatureWhileIgnoring(['page']), 403, 'Invalid Signature');

    return $next($request);
}

Add your new middleware to the Route definition:

// routes/web.php
use App\Http\Middleware\SignedWithPaginator;

Route::get('/shared/user-view', [Controller::class, 'action'])
    ->name('user-view')
    ->middleware([SignedWithPaginator::class]);