SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ca317e8e95c165f42f071bb208babc108c80082ad24a47e877a8b9d1f5a5c4fd' 
  AND token = 'qT9dTFEdyJjSLOi0JR3Pf94gNytbonTMNN/QbjuKSCU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

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