UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'eiyzn6Qd8LCucaWB7x+49o7sVCZpIC368Q3q7q/ZqDc=' 
WHERE 
  key_id = '704bb7435e9ff183ffdd6798d4dbf7360c437b792eed99f26ab27706e4d67f93' 
  AND (
    token = 'eiyzn6Qd8LCucaWB7x+49o7sVCZpIC368Q3q7q/ZqDc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )