Your account details and the state of your subscription.
Profile
Your name and email, from the Google account you signed in with.
Subscription
Which plan you are on and what it includes. See Plans.
Deleting your account
Account deletion is not self-service in the app today. Ask support and it will be done for you. Deleting removes your account and the directories you own, and with them the access of anyone you had invited to those directories. It cannot be undone.