import struct
message = b'message "Render"'
msg = struct.pack('<l',len(message)) + struct.pack('<l',0) + message
print(":".join("{0:x}".format(ord(c)) for c in msg))
print msg
aW1wb3J0IHN0cnVjdAptZXNzYWdlID0gIGInbWVzc2FnZSAiUmVuZGVyIicKbXNnID0gc3RydWN0LnBhY2soJzxsJyxsZW4obWVzc2FnZSkpICsgc3RydWN0LnBhY2soJzxsJywwKSArIG1lc3NhZ2UKcHJpbnQoIjoiLmpvaW4oInswOnh9Ii5mb3JtYXQob3JkKGMpKSBmb3IgYyBpbiBtc2cpKQpwcmludCBtc2c=