Action type:
0 = Link card and account or customer
1 = Unlink card and account or customer (not yet available)
2 = Link card for replacement purpose

Unique identifier for the client which Paymentology will provide at outset

Public token for the card

Existing public token
Linking existing token with new blank token will serve as replacement.
Required when action = 2

Account id
Client can link account and customer id during account creation itself and pass while linking with card.
Required when action = 0
Pass customer also id if an account is not linked to any customer yet

Customer id.
Pass a valid customer id, otherwise linking with the account or token is skipped.
If no customer id is passed, make sure the account and customer are already linked.

Inherit existing card rules. Based on value provide, it will either inherit existing rules or skip.
0 = Inherit
1 = Do not inherit
Default value is 0 i.e. always inherit