def get_lower_long_from_trace_id(trace_id):
    """Returns the lower 8 bytes of the trace ID as a long value, assuming
    little endian order.

    :rtype: long
    :returns: Lower 8 bytes of trace ID
    """
    lower_bytes = trace_id[16:]
    lower_long = int(lower_bytes, 16)

    return lower_long