payment method data storage

[asma1402]

Hello,
can we store a payment method specific data in the payment manager, just like credit cards ?
I'm trying to create a service like the tokenized cards, but with a specific method, and i want sensitive data to be accessed and managed just like credit cards, is there any way to do so ? ( i dont want to use local storage, cookies ....) we are in europe and we want to keep everything GDPR freindly .