{"database": "fitbit", "table": "heart_rate_zones", "rows": [["2015-06-17", 1328, 10, 15, 24]], "columns": ["date", "below_zone_1", "in_zone_1", "in_zone_2", "in_zone_3"], "primary_keys": ["date"], "primary_key_values": ["2015-06-17"], "units": {}, "query_ms": 0.9938560033333488}