Not that I'm falling for any sort of scam.
Entity A presents population consisting of 100,000 people each with a prize certificate that entitles them to a chance at a given prize. They have a 1/100,000 chance of that certificate winning them a $100,000 prize and a 99,999/100,000 chance of that certificate winning them a $1 prize. The prizes have already been randomized for assigned to each certificate, but the certificates only say that each certificate is a winner and that they could win up to $100,000. In order to claim their prize, they must pay a $5 handling fee. They do not know the amount of their prize until after they have paid the fee.