diff --git a/lib/Core/SubscriptionChange/SubscriptionChangeRequestParser.php b/lib/Core/SubscriptionChange/SubscriptionChangeRequestParser.php
index f9aee83..5305f3d 100644
--- a/lib/Core/SubscriptionChange/SubscriptionChangeRequestParser.php
+++ b/lib/Core/SubscriptionChange/SubscriptionChangeRequestParser.php
@@ -15,14 +15,14 @@ class SubscriptionChangeRequestParser {
 	}
 
 	/**
-	 * @param string $urlsSubscribed
-	 * @param string $urlsUnsubscribed
+	 * @param array $urlsSubscribed
+	 * @param array $urlsUnsubscribed
 	 *
 	 * @return SubscriptionChange[]
 	 */
-	public function createSubscriptionChangeList(string $urlsSubscribed, string $urlsUnsubscribed): array {
-		$urlsToSubscribe = $this->subscriptionChangeReader->fromString($urlsSubscribed, true);
-		$urlsToDelete = $this->subscriptionChangeReader->fromString($urlsUnsubscribed, false);
+	public function createSubscriptionChangeList(array $urlsSubscribed, array $urlsUnsubscribed): array {
+		$urlsToSubscribe = $this->subscriptionChangeReader->mapToSubscriptionsChanges($urlsSubscribed, true);
+		$urlsToDelete = $this->subscriptionChangeReader->mapToSubscriptionsChanges($urlsUnsubscribed, false);
 
 		/** @var \OCA\GPodderSync\Core\SubscriptionChange\SubscriptionChange[] $subscriptionChanges */
 		return array_merge($urlsToSubscribe, $urlsToDelete);
diff --git a/lib/Core/SubscriptionChange/SubscriptionChangeSaver.php b/lib/Core/SubscriptionChange/SubscriptionChangeSaver.php
index 70a39f4..588214f 100644
--- a/lib/Core/SubscriptionChange/SubscriptionChangeSaver.php
+++ b/lib/Core/SubscriptionChange/SubscriptionChangeSaver.php
@@ -37,7 +37,7 @@ class SubscriptionChangeSaver {
 		$this->subscriptionChangeRequestParser = $subscriptionChangeRequestParser;
 	}
 
-	public function saveSubscriptionChanges(string $urlsSubscribed, string $urlsUnsubscribed, string $userId): void {
+	public function saveSubscriptionChanges(array $urlsSubscribed, array $urlsUnsubscribed, string $userId): void {
 		$subscriptionChanges = $this->subscriptionChangeRequestParser->createSubscriptionChangeList($urlsSubscribed, $urlsUnsubscribed);
 		foreach ($subscriptionChanges as $urlChangedSubscriptionStatus) {
 			$subscriptionChangeEntity = new SubscriptionChangeEntity();
diff --git a/lib/Core/SubscriptionChange/SubscriptionChangesReader.php b/lib/Core/SubscriptionChange/SubscriptionChangesReader.php
index a6603b0..e63e122 100644
--- a/lib/Core/SubscriptionChange/SubscriptionChangesReader.php
+++ b/lib/Core/SubscriptionChange/SubscriptionChangesReader.php
@@ -6,19 +6,14 @@ namespace OCA\GPodderSync\Core\SubscriptionChange;
 class SubscriptionChangesReader {
 
 	/**
-	 * @param string $raw
+	 * @param array $urls
+	 * @param bool $subscribed
 	 *
-	 * @return array|SubscriptionChange[]
+	 * @return SubscriptionChange[]
 	 */
-	public function fromString(string $raw, bool $subscribed):? array {
-		$urls = str_replace(["[", "]", " "], "", $raw);
-		$urlList = explode(",", $urls);
-
-		if ($urlList[0] === "") {
-			return [];
-		}
+	public static function mapToSubscriptionsChanges(array $urls, bool $subscribed): array {
 		$subscriptionChanges = [];
-		foreach ($urlList as $url) {
+		foreach ($urls as $url) {
 			$subscriptionChanges[] = new SubscriptionChange($url, $subscribed);
 		}
 
diff --git a/tests/Unit/Core/SubscriptionChange/SubscriptionChangeReaderTest.php b/tests/Unit/Core/SubscriptionChange/SubscriptionChangeReaderTest.php
index 7e14dfd..0a47a53 100644
--- a/tests/Unit/Core/SubscriptionChange/SubscriptionChangeReaderTest.php
+++ b/tests/Unit/Core/SubscriptionChange/SubscriptionChangeReaderTest.php
@@ -7,17 +7,11 @@ use OCA\GPodderSync\Core\SubscriptionChange\SubscriptionChangesReader;
 use Test\TestCase;
 
 class SubscriptionChangeReaderTest extends TestCase {
-	public function testCreateFromString(): void {
-		$reader = new SubscriptionChangesReader();
-		$subscriptionChange = $reader->fromString('[https://feeds.megaphone.fm/HSW8286374095]', true);
-		$this->assertCount(1, $subscriptionChange);
+	public function testMapUrlsToSubscriptionChanges(): void {
+		$subscriptionChange = SubscriptionChangesReader::mapToSubscriptionsChanges(["https://feeds.megaphone.fm/HSW8286374095", "https://feeds.megaphone.fm/another"], true);
+		$this->assertCount(2, $subscriptionChange);
 		$this->assertSame("https://feeds.megaphone.fm/HSW8286374095", $subscriptionChange[0]->getUrl());
-	}
-
-	public function testCreateFromEmptyString(): void {
-		$reader = new SubscriptionChangesReader();
-		$subscriptionChange = $reader->fromString('[]', true);
-		$this->assertCount(0, $subscriptionChange);
+		$this->assertSame("https://feeds.megaphone.fm/another", $subscriptionChange[1]->getUrl());
 	}
 
 }
diff --git a/tests/Unit/Core/SubscriptionChange/SubscriptionChangeRequestParserTest.php b/tests/Unit/Core/SubscriptionChange/SubscriptionChangeRequestParserTest.php
index ea6150a..49f93b0 100644
--- a/tests/Unit/Core/SubscriptionChange/SubscriptionChangeRequestParserTest.php
+++ b/tests/Unit/Core/SubscriptionChange/SubscriptionChangeRequestParserTest.php
@@ -13,20 +13,13 @@ class SubscriptionChangeRequestParserTest extends TestCase {
 			new SubscriptionChangesReader(),
 		);
 
-		$subscriptionChanges = $subscriptionChangesParser->createSubscriptionChangeList('[https://feeds.simplecast.com/54nAGcIl]','[]');
-		$this->assertCount(1, $subscriptionChanges);
-		$this->assertSame('https://feeds.simplecast.com/54nAGcIl', $subscriptionChanges[0]->getUrl());
+		$subscriptionChanges = $subscriptionChangesParser->createSubscriptionChangeList(["https://feeds.simplecast.com/54nAGcIl", "https://feeds.simplecast.com/another"],["https://i.am-removed/GcIl"]);
+		$this->assertCount(3, $subscriptionChanges);
+		$this->assertSame("https://feeds.simplecast.com/54nAGcIl", $subscriptionChanges[0]->getUrl());
+		$this->assertSame("https://feeds.simplecast.com/another", $subscriptionChanges[1]->getUrl());
+		$this->assertSame("https://i.am-removed/GcIl", $subscriptionChanges[2]->getUrl());
 		$this->assertTrue($subscriptionChanges[0]->isSubscribed());
+		$this->assertFalse($subscriptionChanges[2]->isSubscribed());
 	}
 
-	public function testSubscriptionRequestWithMultipleChangesConvertsToSubscriptionChangeList() {
-		$subscriptionChangesParser = new SubscriptionChangeRequestParser(
-			new SubscriptionChangesReader(),
-		);
-
-		$subscriptionChanges = $subscriptionChangesParser->createSubscriptionChangeList(
-			'[https://podcastfeeds.nbcnews.com/dateline-nbc,https://feeds.megaphone.fm/ADL9840290619]',
-			'[]');
-		$this->assertCount(2, $subscriptionChanges);
-	}
 }