Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1e5544130e355a2c0f76032b423dcb578a8d8824d60ef108766101b3756cd074' 
  AND token = 'c5sC/Nj1jln0Wo9N9n7CyMvvV3r0HXTkSXyl2PlO43k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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