diff --git a/src/Socialbox/Classes/StandardMethods/Settings/SettingsDeleteSignature.php b/src/Socialbox/Classes/StandardMethods/Settings/SettingsDeleteSignature.php
index 176163c..3004801 100644
--- a/src/Socialbox/Classes/StandardMethods/Settings/SettingsDeleteSignature.php
+++ b/src/Socialbox/Classes/StandardMethods/Settings/SettingsDeleteSignature.php
@@ -23,28 +23,21 @@
          */
         public static function execute(ClientRequest $request, RpcRequest $rpcRequest): ?SerializableInterface
         {
-            if(!$rpcRequest->containsParameter('uuid'))
+            if(!$rpcRequest->containsParameter('signature_uuid'))
             {
-                throw new MissingRpcArgumentException('uuid');
+                throw new MissingRpcArgumentException('signature_uuid');
             }
 
+            $signatureUuid = (string)$rpcRequest->getParameter('signature_uuid');
+
             try
             {
-                $uuid = Uuid::fromString($rpcRequest->getParameter('uuid'));
-            }
-            catch(InvalidArgumentException)
-            {
-                throw new InvalidRpcArgumentException('uuid');
-            }
-
-            try
-            {
-                if(!SigningKeysManager::signingKeyExists($request->getPeer()->getUuid(), $uuid))
+                if(!SigningKeysManager::signingKeyExists($request->getPeer()->getUuid(), $signatureUuid))
                 {
                     return $rpcRequest->produceResponse(false);
                 }
 
-                SigningKeysManager::deleteSigningKey($request->getPeer()->getUuid(), $uuid);
+                SigningKeysManager::deleteSigningKey($request->getPeer()->getUuid(), $signatureUuid);
             }
             catch(DatabaseOperationException $e)
             {
diff --git a/src/Socialbox/Managers/SigningKeysManager.php b/src/Socialbox/Managers/SigningKeysManager.php
index 15cf4bc..0c4eb75 100644
--- a/src/Socialbox/Managers/SigningKeysManager.php
+++ b/src/Socialbox/Managers/SigningKeysManager.php
@@ -235,16 +235,26 @@
          * Deletes a signing key from the database using the provided UUID.
          *
          * @param string $peerUuid The UUID of the peer associated with the signing key.
-         * @param string $uuid The UUID of the signing key to delete.
+         * @param string $signatureUuid The UUID of the signing key to delete.
          * @return void
          * @throws DatabaseOperationException If a database error occurs during the operation.
          */
-        public static function deleteSigningKey(string $peerUuid, string $uuid): void
+        public static function deleteSigningKey(string $peerUuid, string $signatureUuid): void
         {
+            if(!Validator::validateUuid($peerUuid))
+            {
+                throw new InvalidArgumentException('The given internal peer UUID is not a valid UUID V4');
+            }
+
+            if(!Validator::validateUuid($signatureUuid))
+            {
+                throw new InvalidArgumentException('The given signature UUID is not a valid UUID V4');
+            }
+
             try
             {
                 $statement = Database::getConnection()->prepare("DELETE FROM signing_keys WHERE uuid=:uuid AND peer_uuid=:peer_uuid");
-                $statement->bindParam(':uuid', $uuid);
+                $statement->bindParam(':uuid', $signatureUuid);
                 $statement->bindParam(':peer_uuid', $peerUuid);
                 $statement->execute();
             }