Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a41e3950e86000902b2bf6a54feda474c9109301b36d64a9f212d9113bd8c099' 
  AND token = 'qtLjI30l+JFAeeMmhjl86Pgab9Hj02rnMFtlRet/TOc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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