{"plays":[{"participant_id":"3f1bc86925d88deaa01b623901b7b645a58e65cfffc1041da333f853c1ce065228c4aaeab524868b91eaa8f6923573b7e93e31faf6216ac0b0f6b0b26c76fabe","user_hash":"0c48d05a6ed612e6baeb88248e6e8513","first_name":"A","last_name":"J","track_slug":"cilium-up-and-running","status":"started","challenges_completed":14,"challenges_total":15,"start_time":"2026-07-17T05:44:39Z","end_time":"1970-01-01T00:00:00Z"}]}