The meaning here is, who is eligible for this mission, provide eligibility rules for this mission.
All players can take part in this mission (must register first on Orbler).
Level threshold: Only users/players with a certain level can take part in missions.
Token Threshold: Only users/players who have a certain number of tokens in a wallet that is registered and connected to Orbler can take part in the mission. The community owner just needs to set the minimum number of tokens or coins.
NFT holders: Only certain users/players who have certain NFTs can take part in this mission. The community owner sets up the contract address of the specified NFT.