Transfer is account exists
const unsigned_transaction = await aptos.transaction.build.simple ({ sender: from_address, data: { function: "0x1::coin::transfer", typeArguments: [ "0x1::aptos_coin::AptosCoin" ], functionArguments: [ to_address, amount ] }, options: { expireTimestamp // maxGasAmount: BigInt (300000) } });Create account and transfer.