Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '95e11b1c5a411601f8b27eeb09d0955e4caaca74e62b43252685576412c0d8ad' 
  AND token = 'l904bkWafVL83qAglcjpVYjqzRzO8ODoxFmLLOccAR4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

Explain
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE								Impossible WHERE noticed after reading const tables