SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9382baadebea461d920c205410d5fa127741ae805c3e51d6114621222346ed16' 
  AND token = 'zpAZoulh2kgDq2QTuxT3+S8ES61FD84VpVqayUmq9Rs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

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