How to add a subscription button in app

How to add a subscription button in app

what do u mean please elborate

Button add and block for subscription

please say in detail that what will it work (fully explained)shortcut dont work nowdays,a word have 100 of meanings

Store two different values in a database
subscriptions$name and subscriptionsnumber$name.
$name is a username what every user have who can subscribe.

An example
3 users: Andromeda, Butterfly and Chameleon.
Database
“subscriptionsAndromeda” : “(Butterfly)”
“subscriptionsButterfly” : “(Andromeda Chameleon)”
“subscriptionsChameleon” : “()”
“subscriptionnumberAndromeda” : “1”
“subscriptionnumberButterfly” : “1”
“subscriptionnumberChameleon” : “1”