diff --git a/functions/api/rtbf.ts b/functions/api/rtbf.ts
index 3581af9..943f4d5 100644
--- a/functions/api/rtbf.ts
+++ b/functions/api/rtbf.ts
@@ -40,7 +40,7 @@ export async function onRequestPost(context: RequestContext) {
       textEncode(`${timestamp.replace("t=", "")}.${body}`),
     ))
   )
-    return jsonError("Invalid signature", 403);
+    return jsonError("Invalid signature", 401);
 
   const data = JSON.parse(body);
 
@@ -53,7 +53,7 @@ export async function onRequestPost(context: RequestContext) {
     return jsonError("Invalid event type", 400);
 
   const { prisma } = context.data;
-  const userId = data.EventPrisma.UserId;
+  const userId = data.EventPayload.UserId;
 
   if (typeof userId !== "number") return jsonError("Invalid user id", 400);