diff --git a/src/applications/feed/PhabricatorFeedStoryPublisher.php b/src/applications/feed/PhabricatorFeedStoryPublisher.php
--- a/src/applications/feed/PhabricatorFeedStoryPublisher.php
+++ b/src/applications/feed/PhabricatorFeedStoryPublisher.php
@@ -176,7 +176,7 @@
     $data = array(
       'key'         => (string)$chrono_key,
       'type'        => 'notification',
-      'subscribers' => $this->subscribedPHIDs,
+      'subscribers' => array_values($this->subscribedPHIDs),
     );
 
     PhabricatorNotificationClient::tryToPostMessage($data);
diff --git a/support/aphlict/server/aphlict_server.js b/support/aphlict/server/aphlict_server.js
--- a/support/aphlict/server/aphlict_server.js
+++ b/support/aphlict/server/aphlict_server.js
@@ -180,6 +180,10 @@
 
         response.writeHead(200, {'Content-Type': 'text/plain'});
       } catch (err) {
+        debug.log(
+          '<%s> Bad Request! %s',
+          request.socket.remoteAddress,
+          err);
         response.statusCode = 400;
         response.write('400 Bad Request');
       } finally {