diff --git a/app/Http/Requests/AuthorizedRequest.php b/app/Http/Requests/AuthorizedRequest.php
index 8daa541..c6c8b88 100644
--- a/app/Http/Requests/AuthorizedRequest.php
+++ b/app/Http/Requests/AuthorizedRequest.php
@@ -9,7 +9,7 @@ class AuthorizedRequest extends RestRequest
      */
     public function authorize(): bool
     {
-        return cache()->remember('isSessionAuthorized'.session()->id(), 5, function(){
+        return cache()->remember('isSessionAuthorized'.session()->id(), 5, function () {
             return auth()->check();
         });
     }
diff --git a/app/Services/UserService.php b/app/Services/UserService.php
index b3094f0..0f6f432 100644
--- a/app/Services/UserService.php
+++ b/app/Services/UserService.php
@@ -50,7 +50,9 @@ class UserService
 
     public function setPassword($data)
     {
-        $user = User::where(['email' => $data['email']])->first();
+        $user = cache()->remember('userExists'.$data['email'], 5, function () use ($data) {
+            return User::where(['email' => $data['email']])->first();
+        });
         if ($user === null) {
             return;
         }
@@ -62,21 +64,23 @@ class UserService
     public function listAll(?Filters $filters = null): array
     {
         if (is_null($filters)) {
-            return cache()->remember('usersListAll', 15, function() {
+            return cache()->remember('usersListAll', 15, function () {
                 return User::all()->toArray();
             });
         }
         $builder = User::query();
         $filters->apply($builder);
 
-        return cache()->remember('usersListFilter'.$filters->hash(), 15, function() use ($builder) {
+        return cache()->remember('usersListFilter'.$filters->hash(), 15, function () use ($builder) {
             return $builder->get()->toArray();
         });
     }
 
     public function getOneById(string $id): ?User
     {
-        return User::where(['id' => $id])->first();
+        return cache()->remember('userId'.$id, 5, function () use ($id) {
+            return User::where(['id' => $id])->first();
+        });
     }
 
     /**
@@ -102,7 +106,9 @@ class UserService
 
     public function getUnexistingIds(array $ids): ?array
     {
-        $users = User::whereIn('id', $ids)->get();
+        $users = cache()->remember('userWhereIn'.implode(',', $ids), 5, function () use ($ids) {
+            User::whereIn('id', $ids)->get();
+        });
         if ($users->count() != count($ids)) {
             $existingIds = $users->map(
                 function ($model) {