optimized deserialize and modified assert for multisig
optimized deserialize and modified assert for multisig

fireduck64/electrum,digitalbitbox/electrum,cryptapus/electrum,vertcoin/electrum-vtc,vertcoin/electrum-vtc,cryptapus/electrum,cryptapus/electrum-myr,wakiyamap/electrum-mona,kyuupichan/electrum,aasiutin/electrum,vialectrum/vialectrum,argentumproject/electrum-arg,molecular/electrum,fireduck64/electrum,aasiutin/electrum,dabura667/electrum,spesmilo/electrum,imrehg/electrum,digitalbitbox/electrum,fireduck64/electrum,pknight007/electrum-vtc,lbryio/lbryum,cryptapus/electrum-myr,fujicoin/electrum-fjc,dabura667/electrum,dashpay/electrum-dash,argentumproject/electrum-arg,asfin/electrum,aasiutin/electrum,dabura667/electrum,spesmilo/electrum,cryptapus/electrum-myr,aasiutin/electrum,pknight007/electrum-vtc,lbryio/lbryum,neocogent/electrum,vertcoin/electrum-vtc,fyookball/electrum,spesmilo/electrum,vialectrum/vialectrum,dashpay/electrum-dash,pooler/electrum-ltc,imrehg/electrum,cryptapus/electrum-myr,asfin/electrum,procrasti/electrum,pknight007/electrum-vtc,procrasti/electrum,protonn/Electrum-Cash,neocogent/electrum,FairCoinTeam/electrum-fair,fujicoin/electrum-fjc,vialectrum/vialectrum,wakiyamap/electrum-mona,molecular/electrum,FairCoinTeam/electrum-fair,wakiyamap/electrum-mona,dashpay/electrum-dash,FairCoinTeam/electrum-fair,cryptapus/electrum-uno,molecular/electrum,fyookball/electrum,fyookball/electrum,pooler/electrum-ltc,fujicoin/electrum-fjc,asfin/electrum,dabura667/electrum,FairCoinTeam/electrum-fair,digitalbitbox/electrum,protonn/Electrum-Cash,vertcoin/electrum-vtc,procrasti/electrum,pknight007/electrum-vtc,neocogent/electrum,cryptapus/electrum-uno,dashpay/electrum-dash,kyuupichan/electrum,imrehg/electrum,argentumproject/electrum-arg,spesmilo/electrum,cryptapus/electrum-uno,romanz/electrum,cryptapus/electrum,wakiyamap/electrum-mona,protonn/Electrum-Cash,kyuupichan/electrum,pooler/electrum-ltc,pooler/electrum-ltc,romanz/electrum,argentumproject/electrum-arg,digitalbitbox/electrum,procrasti/electrum,cryptapus/electrum-uno,romanz/electrum,fireduck64/electrum,protonn/Electrum-Cash,molecular/electrum,imrehg/electrum