The txType of the transaction, one in [Noop,Deposit,Withdraw,Transfer,SpotTrade,AccountUpdate,AmmUpdate,JoinAmm,ExitAmm,SignatureVerification,NftMint,NftData]
Allowable : ['Noop', 'Deposit', 'Withdraw', 'Transfer', 'SpotTrade', 'AccountUpdate', 'AmmUpdate', 'JoinAmm', 'ExitAmm', 'SignatureVerification', 'NftMint', 'NftData']