Local storage saving item key with unknown prefix

[shinobu-uwu]

Hello! I have a function that saves items to secure storage using the local area, however when I call the getAll method, the keys are returned with a prefix that to me is unknown. Why is this happening, what is that id, and is there any way to fix it?

This is how my items are being saved:

const secureStorage = await getLocalStorage();
await secureStorage.setItem(`item-${userId}:${item.id}`, JSON.stringify(item));

And here is how it's being retrieved when I need to list all items:

const secureStorage = await getLocalStorage();
const keyValues = await secureStorage.getAll();
const keys = Object.keys(keyValues).filter((key) => key.startsWith(`item-${userId}:`));
const promises = keys.map(async (key) => {
    const json = await secureStorage.getItem(key);
    const item = JSON.parse(json!);

    return {
        id: item.id,
        name: item.name,
    };
});
let items = await Promise.all(promises);

This is an example key that is being returned by getAll: 371daecf|:|item-<redacted>:<redacted>