Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1f429e95643f7faa1870d9028f66dfb16839547b42336b10777f02cc8c086129' 
  AND token = 'u9mtiYyQ3umMOvbgRX9Bup6eaNKMfYF5rySZbSGvvLY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}