{"plays":[{"participant_id":"acb87408b1463ef1879be0451a626552de54035ed0dba98abf3fbb435644a73c525f30690a4ef42aa39b3fd265dfdacf5436fb465f56aaa519ea13f500a2e8b2","user_hash":"809e8ae0acafed705327e9f601dcb0da","first_name":"A","last_name":"R","track_slug":"ebpf-getting-started","status":"started","challenges_completed":5,"challenges_total":6,"start_time":"2026-07-18T02:13:56Z","end_time":"1970-01-01T00:00:00Z"}]}