UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Se3WWQQE+s4rtQpl8bia1veS796YcX40w2ZG/EqnSE4=' 
WHERE 
  key_id = '21d40b6665113a6c1aff201f8a8d450b827180ce48068817efa71b0077645502' 
  AND (
    token = 'Se3WWQQE+s4rtQpl8bia1veS796YcX40w2ZG/EqnSE4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )