SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bc2cba33a00c0d1d2adae48e9940e2cd3dad1b15b691e896b177c287debc363c' 
  AND token = 'GE9a8fJerpVBCj0q0IRFB/CbUhl0hSciA1lla1deObA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

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