General structure of a Non-Fungible Token drop. This should be passed into
createDrop if you wish to have an NFT drop.
The account ID that the NFT contract is deployed to. This contract is where all the NFTs for the specific drop must come from.
By default, anyone can fund your drop with NFTs. This field allows you to set a specific account ID that will be locked into sending the NFTs.
If there are any token IDs that you wish to be automatically sent to the Keypom contract in order to register keys as part of
createDrop, specify them here.
A maximum of 2 token IDs can be sent as part of the transaction. If you wish to register more keys by sending more NFTs, you must do this in a separate call by invoking
nftTransferCall method separately.