SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01cb5a2acf1feea3c045cf75a36c30abfe73461a4b3cb5791d951502097cdd53' 
  AND token = 'qXrdW4df/6kAc4edSYx1U9P23Yyv5312pdOWIlTAgAI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00192

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