diff --git a/module/CLI/src/Command/Api/GenerateKeyCommand.php b/module/CLI/src/Command/Api/GenerateKeyCommand.php
index 23f0f8fc..37f0aaca 100644
--- a/module/CLI/src/Command/Api/GenerateKeyCommand.php
+++ b/module/CLI/src/Command/Api/GenerateKeyCommand.php
@@ -7,6 +7,7 @@ namespace Shlinkio\Shlink\CLI\Command\Api;
 use Cake\Chronos\Chronos;
 use Shlinkio\Shlink\CLI\ApiKey\RoleResolverInterface;
 use Shlinkio\Shlink\CLI\Util\ExitCodes;
+use Shlinkio\Shlink\CLI\Util\ShlinkTable;
 use Shlinkio\Shlink\Rest\ApiKey\Role;
 use Shlinkio\Shlink\Rest\Service\ApiKeyServiceInterface;
 use Symfony\Component\Console\Command\Command;
@@ -15,6 +16,7 @@ use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Console\Style\SymfonyStyle;
 
+use function Shlinkio\Shlink\Core\arrayToString;
 use function sprintf;
 
 class GenerateKeyCommand extends Command
@@ -81,7 +83,17 @@ class GenerateKeyCommand extends Command
         );
 
         // TODO Print permissions that have been set
-        (new SymfonyStyle($input, $output))->success(sprintf('Generated API key: "%s"', $apiKey->toString()));
+        $io = new SymfonyStyle($input, $output);
+        $io->success(sprintf('Generated API key: "%s"', $apiKey->toString()));
+
+        if (! $apiKey->isAdmin()) {
+            ShlinkTable::fromOutput($io)->render(
+                ['Role name', 'Role metadata'],
+                $apiKey->mapRoles(fn (string $name, array $meta) => [$name, arrayToString($meta, 0)]),
+                null,
+                'Roles',
+            );
+        }
 
         return ExitCodes::EXIT_SUCCESS;
     }
diff --git a/module/Core/functions/functions.php b/module/Core/functions/functions.php
index c766b767..076de6a0 100644
--- a/module/Core/functions/functions.php
+++ b/module/Core/functions/functions.php
@@ -14,6 +14,7 @@ use function Functional\reduce_left;
 use function is_array;
 use function print_r;
 use function sprintf;
+use function str_repeat;
 
 const DEFAULT_DELETE_SHORT_URL_THRESHOLD = 15;
 const DEFAULT_SHORT_CODES_LENGTH = 5;
@@ -79,11 +80,20 @@ function getOptionalBoolFromInputFilter(InputFilter $inputFilter, string $fieldN
     return $value !== null ? (bool) $value : null;
 }
 
-function arrayToString(array $array): string
+function arrayToString(array $array, int $indentSize = 4): string
 {
-    return reduce_left($array, fn ($messages, string $name, $_, string $acc) => $acc . sprintf(
-        "\n    '%s' => %s",
-        $name,
-        is_array($messages) ? print_r($messages, true) : $messages,
-    ), '');
+    $indent = str_repeat(' ', $indentSize);
+    $index = 0;
+
+    return reduce_left($array, static function ($messages, string $name, $_, string $acc) use (&$index, $indent) {
+        $index++;
+
+        return $acc . sprintf(
+            "%s%s'%s' => %s",
+            $index === 1 ? '' : "\n",
+            $indent,
+            $name,
+            is_array($messages) ? print_r($messages, true) : $messages,
+        );
+    }, '');
 }
diff --git a/module/Core/src/Exception/ValidationException.php b/module/Core/src/Exception/ValidationException.php
index 195cfa42..3a211592 100644
--- a/module/Core/src/Exception/ValidationException.php
+++ b/module/Core/src/Exception/ValidationException.php
@@ -53,11 +53,12 @@ class ValidationException extends InvalidArgumentException implements ProblemDet
     public function __toString(): string
     {
         return sprintf(
-            '%s %s in %s:%s%s%sStack trace:%s%s',
+            '%s %s in %s:%s%s%s%sStack trace:%s%s',
             __CLASS__,
             $this->getMessage(),
             $this->getFile(),
             $this->getLine(),
+            PHP_EOL,
             arrayToString($this->getInvalidElements()),
             PHP_EOL,
             PHP_EOL,
diff --git a/module/Core/test/Exception/ValidationExceptionTest.php b/module/Core/test/Exception/ValidationExceptionTest.php
index fab70760..a0980738 100644
--- a/module/Core/test/Exception/ValidationExceptionTest.php
+++ b/module/Core/test/Exception/ValidationExceptionTest.php
@@ -39,7 +39,7 @@ class ValidationExceptionTest extends TestCase
         $inputFilter = $this->prophesize(InputFilterInterface::class);
         $getMessages = $inputFilter->getMessages()->willReturn($invalidData);
 
-        $e = ValidationException::fromInputFilter($inputFilter->reveal());
+        $e = ValidationException::fromInputFilter($inputFilter->reveal(), $prev);
 
         self::assertEquals($invalidData, $e->getInvalidElements());
         self::assertEquals(['invalidElements' => array_keys($invalidData)], $e->getAdditionalData());
@@ -52,6 +52,6 @@ class ValidationExceptionTest extends TestCase
 
     public function provideExceptions(): iterable
     {
-        return [[null, new RuntimeException(), new LogicException()]];
+        return [[null], [new RuntimeException()], [new LogicException()]];
     }
 }
diff --git a/module/Rest/src/Entity/ApiKey.php b/module/Rest/src/Entity/ApiKey.php
index 4538829c..62729031 100644
--- a/module/Rest/src/Entity/ApiKey.php
+++ b/module/Rest/src/Entity/ApiKey.php
@@ -115,6 +115,11 @@ class ApiKey extends AbstractEntity
         return $role === null ? [] : $role->meta();
     }
 
+    public function mapRoles(callable $fun): array
+    {
+        return $this->roles->map(fn (ApiKeyRole $role) => $fun($role->name(), $role->meta()))->getValues();
+    }
+
     public function registerRole(RoleDefinition $roleDefinition): void
     {
         $roleName = $roleDefinition->roleName();