string - What data format is this? Kind of similar to json -

does know type of format this? how parse it?

[[{nodeid=10001-nodename=tree}-{nodeid=20205-nodename=digital}-{nodeid=23966-nodename=e-learning}-{nodeid=24176-nodename=online courses}]-[{nodeid=10001-nodename=tree}-{nodeid=20205-nodename=digital}-{nodeid=23966-nodename=e-learning}-{nodeid=24177-nodename=certification & professional courses}]]