SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9445ea32f542b4a812a08ee778fe1042b041c58bce19bf4c2826f0d8ec572614' 
  AND token = 'iBbFZBEIenJ1bPQ16+2DkZmzKo+3UzBFNMOBKy0hDvM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

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