protected Object internalDeserializeFromString(final String encoded) {
        val enc = Base64.getDecoder().decode(encoded);
        return internalDeserializeFromBytes(enc);
    }
<p>internalDeserializeFromString.</p>

@param encoded a {@link String} object
@return a {@link Object} object
pac4j-core/src/main/java/org/pac4j/core/util/serializer/AbstractSerializer.java