data/misc.go
func FromBase64ToHex(s Base64String) (string, error) {
	b, err := ToBytes(s)
	if err != nil {
		return "", err
	}
	return hex.EncodeToString(b), nil
}
func FromBase64ToHex(s Base64String) (string, error) {
	b, err := ToBytes(s)
	if err != nil {
		return "", err
	}
	return hex.EncodeToString(b), nil
}
// FromBase64ToHex return hex of base 64 encoded.