Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '96578c8984340630d72de30e6aad30a42f04cb37c7847a4e776785962d17f1c3' 
  AND token = 'Q0LQa/QNvWraJGs2CSvVw6yHm3log45ChhZmO6YNxTY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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