Prepare a transaction to create a NFT
@param {int} initialSupply of the NFT
@param {String} name of the NFT
@param {String} seed TransactionChain seed
@param {int} index Number of transaction in the chain
@param {String} curve Elliptic curve to use ("ed25519", "P256", "secp256k1")
@param {} originPrivateKey The origin signature to able to perform the ProofOfWork and authorize the transaction