diff --git a/src/keys.js b/src/keys.js
index c8394e9..7065a7f 100644
--- a/src/keys.js
+++ b/src/keys.js
@@ -9,7 +9,13 @@ export const handler = async (event, context, callback) => {
     return;
   }
 
-  const body = utils.normalizeBody(querystring.parse(event.body));
+  let body;
+  const contentType = event.headers['Content-Type'].split(';')[0];
+  if (contentType === 'application/json') {
+    body = utils.normalizeBody(JSON.parse(event.body));
+  } else {
+    body = utils.normalizeBody(querystring.parse(event.body));
+  }
 
   let user;
   let device;