@classmethod
def parse_bytes(cls, data: bytes):
    """
        Parse received Packet from JSON and create ProtocolAck object
        """
    source = data['SOURCE']
    group = data['GROUP']
    sn = data['SN']
    nbt = data['NEIGHBOR_BOOT_TIME']
    nssn = data['NEIGHBOR_SNAPSHOT_SN']
    mssn = data['MY_SNAPSHOT_SN']
    return cls(source, group, sn, nbt, nssn, mssn)
