Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5313240fa21dc8f1b12a7369de0ba60e4acccdcd83bc1b7f11b92656ddc9e79d' 
  AND token = '9ATuw9Aotl4iH42OyZNWaAgnn2hGuxe2yAD4pWwhYi0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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