email,subscribed,stripe_customer_id
member+duplicate_stripe_1@example.com,true,cus_GbbIQRd8TnFqHq
member+duplicate_stripe_2@example.com,false,cus_GbbIQRd8TnFqHq
member+unique_stripe_1@example.com,true,cus_GbbIQRd8TnFqHA
