Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e041f1855f0ba840217e1fd940a6cae3ef616f5995c08ae8ff965ee9ccf83af2' 
  AND token = 'GihlOroJPvt6fHpzDa3y9ltLacKqDEmPYUPrEHSJSAE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

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