Wallet configuration for the account that will be used for submitting transactions to the deployed Canton sequencer smart contract. Accounts are configurable via a standard web3 wallet (type="file-based-wallet") as well as via a Bip39-based wallet (type="bip-39-based-wallet"). If no wallet is specified, a random account is generated and used (only recommended for zero-gas networks).

Note that by default the Canton integration assumes that it's the only application submitting transaction for a given account and thus assumes the transaction nonce for that account doesn't change except due to Canton-submitted transactions. If you have configured a custom wallet and will submit transactions to the blockchain for the same account from another application, then you need to set checkNonceBeforeEverySubmission to true. In this case, Canton will query the current account nonce before every transaction submission. Note that transactions may still fail with, e.g., "Nonce too low" and will need to be retried if submitting concurrent transactions for the same Ethereum account.