UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Q6l4DZHD40A/i7Er6PI1t+rFEXEloCx7rxs1OK3/jAQ=' 
WHERE 
  key_id = '251e211c7117001a59aa37af77d475fcafc779665b1246465f72f5b293eb997b' 
  AND (
    token = 'Q6l4DZHD40A/i7Er6PI1t+rFEXEloCx7rxs1OK3/jAQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )