> For the complete documentation index, see [llms.txt](https://docs.bkcoracle.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bkcoracle.com/deprecated/how-to-subscribe-to-data-oracle/monthly-subscription.md).

# Monthly subscription

A monthly subscription will grant an NFT with access to the data feeds for 30 days (the expiration date can be extended for 30 days per renewal).

To purchase you must have at least 2 KKUB in your connected wallet, if you don't have enough KKUB you can [convert KUB to KKUB](/deprecated/whats-dashboard/how-to-convert-kub-to-kkub.md).

To purchase you have to approve KKUB to the subscription contract first, to do that click on *Approve KKUB* button and confirm granting permission on the wallet's popup.

![Approve KKUB](/files/OKVIBx7luys6RVXFQ698) ![Purchase the monthly subscription](/files/BkYfcciaSZrdxsYXh2uE)

After approving KKUB, the *Purchase Now* button will appear and you can click on the button to purchase a monthly subscription.

After the purchasing, the subscription NFT will appear in the *Subscriptions* tab then you can manage the NFT's access control from there.