A plugin with which you can implement a lottery?

Question

Payment systems

Good evening. I want to create a site with the following storyline:
1. A person enters - Registers - Gets his ID
2. Gift promotions are published on the site
3. A person enters the promotion he likes, subscribes.
4. At the end of the week, the winner is automatically selected from among those who subscribed to the action.
For example, 100 people subscribed to Promotion X1, 50 people subscribed to Promotion X2. Separately, for X1 shares, choose the winner among those who subscribed to X1, and separately for X2. Those. The winner of one promotion is not to be confused with another promotion.
What plugin or engine can do this?
I just wanted to do it on WordPress
Thank you in advance

Answer 1

Purely commercial.
Ready-made on WordPress is not found.