post https://eth-mainnet.g.alchemy.com/v2/
Request to cancel private transactions on Ethereum that are sent via eth_sendPrivateTransaction.
eth_cancelPrivateTransaction
stops private transactions from being submitted for future blocks. A transaction can only be cancelled if the request sent through the the same alchemy app/API key that the eth_sendPrivateTransaction
call was sent to in first place.
NOTE: This method is currently only supported on Ethereum mainnet.