Possible future improvement: tie this number to some multiple of MaxBlobsPerTxn so that we don't have to keep changing this number as the number of blobs increases.

@shohamc1 this PR might be a good opportunity to do one change we discussed:

if len(serializedTxn) > maxSize {
	return ErrRlpTooBig
}

wrap this error with transaction type:

return fmt.Errorf("%w: type=%d", ErrRlpTooBig , txnType)

so that we get better understanding of these errors (whether they are from blobs or from private mempools)

@shohamc1 this PR might be a good opportunity to do one change we discussed:

if len(serializedTxn) > maxSize {
	return ErrRlpTooBig
}

wrap this error with transaction type:

return fmt.Errorf("%w: type=%d", txnType)

so that we get better understanding of these errors (whether they are from blobs or from private mempools)

or we do this in a follow up PR? up to you

@taratorio it's a small change, I've done it here