update

app/Http/Facade/SignRSA.php

@@ -2,12 +2,13 @@
 
 namespace App\Http\Facade;
 
+use App\Http\Services\SignRSA as SignRSAService;
 use Illuminate\Support\Facades\Facade;
 
 class SignRSA extends Facade
 {
     protected static function getFacadeAccessor()
     {
-        return 'signrsa';
+        return SignRSAService::class;
     }
 }

app/Providers/AppServiceProvider.php

@@ -3,7 +3,6 @@
 namespace App\Providers;
 
 use App\Http\Helpers\Helper;
-use App\Http\Services\SignRSA;
 use App\Models\ModuleIpAddress;
 use App\Models\ModuleVmware;
 use App\Observers\ModuleIpAddressObserver;
@@ -27,9 +26,6 @@ class AppServiceProvider extends ServiceProvider
         $this->app->singleton(CacheServiceInterface::class, CacheService::class);
         $this->app->singleton(ActivityLogger::class);
 
-        $this->app->bind('signrsa', function () {
-            return new SignRSA();
-        });
         $this->app->bind('helper', function () {
             return new Helper();
         });