Pay to post a comment plugin.

Hello everyone!
I want to make a website where people can post messages, but to do so they have to pay for it. For example they visit my website and want to leave a tweet-like post, but to publish it they have to pay $1. Also if there are any messages left on the website they are counted and shown on the screen.
Is there any plugins available on the internet that can do this?

Thank you!