How to create a paypal simple adaptive payments transaction with the possibility of further execution?

Question

PayPal

Good afternoon.
You need to create a payment through PayPal. After reading the doc, I realized that you can use the adaptive payment system Link

There are 3 types of payment: PAY, CREATE, PAY_PRIMARY. Payment is made via a link with the payKey payment key, which comes in response to the creation. PAY - direct payment without the need to execute it later (execute), CREATE - payment for which you can add some more properties and then you need to execute (execute), PAY_PRIMARY - chain payment for several recipients, it is also necessary to perform, but it cannot be created for one recipient ( failed to create for one user).

Now the question is: How can I implement a transaction with the ability to activate / approve / execute after depositing money from the sender? So that the recipient has the opportunity to withdraw them (what is the completion of the transaction)?
I have not found a solution on the Internet, I ask for your help on how to implement this