Hero prepaid sale and rental

Users are allowed to post heroes for sale on Marketplace with the following conditions:

• User is the owner of NFT Hero

• Minimum hero level is 5

• User is not allowed to trade with NFT hero:

+ Received from Airdrop

+ Received from the reward

+ Summon from Shard Hero

Minimum pre-paid listing/lease price is 10 USD

Minimum prepaid rental period is 1 day