diff --git a/src/libs/errors/FailedToQueueTask.ts b/src/libs/errors/FailedToQueueTask.ts
new file mode 100644
index 0000000..5f364f2
--- /dev/null
+++ b/src/libs/errors/FailedToQueueTask.ts
@@ -0,0 +1,5 @@
+export class FailedToQueueTaskError extends Error {
+  constructor(status: number, bodyText: string) {
+    super(`Failed to queue task; status: ${status}, body: ${bodyText}`);
+  }
+}
diff --git a/src/libs/tasks/queueTask.ts b/src/libs/tasks/queueTask.ts
index 5717304..ce0af23 100644
--- a/src/libs/tasks/queueTask.ts
+++ b/src/libs/tasks/queueTask.ts
@@ -4,6 +4,7 @@ import { DateTime, type DurationLike } from "luxon";
 import type { Env } from "~/types/env";
 import type { WatchStatus } from "~/types/title/watchStatus";
 
+import { FailedToQueueTaskError } from "../errors/FailedToQueueTask";
 import { getAdminSdkCredentials } from "../gcloud/getAdminSdkCredentials";
 import { getGoogleAuthToken } from "../gcloud/getGoogleAuthToken";
 import { getCurrentDomain } from "../getCurrentDomain";
@@ -47,7 +48,7 @@ export async function queueTask(
   const adminSdkCredentials = getAdminSdkCredentials(env);
   const { projectId } = adminSdkCredentials;
 
-  await fetch(
+  const res = await fetch(
     `https://content-cloudtasks.googleapis.com/v2/projects/${projectId}/locations/northamerica-northeast1/queues/${queueName}/tasks?alt=json`,
     {
       headers: {
@@ -67,6 +68,10 @@ export async function queueTask(
       method: "POST",
     },
   );
+
+  if (!res.ok) {
+    throw new FailedToQueueTaskError(res.status, await res.text());
+  }
 }
 
 function buildTask(
@@ -99,7 +104,7 @@ function buildTask(
         httpRequest: {
           url: `${domain}/internal/new-episode`,
           httpMethod: "POST",
-          body: JSON.stringify(body),
+          body: Buffer.from(JSON.stringify(body)).toString("base64"),
           headers: {
             "Content-Type": "application/json",
             "X-Anilist-Token": headers?.["X-Anilist-Token"],