Payouts are automatically paid on the 1st day of each month. Your first payment could take slightly longer to be deposited depending on when your pending balance becomes available. It can take 2-10 days from the time each subscription is billed before it becomes available to be paid out.
For example, if you get 3 new subscriptions on Jan 29th, those funds typically might not be available for payout up to 10 days (usually less). So you would get paid for those on March 1st.
You can also do a manual payout from the payouts page in your seller dashboard.