UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ocz4CsLIrTeImKUCqA+3qxqsprlyfWXLo+EKgVrotMY=' 
WHERE 
  key_id = '9826a9d5966c20d2bd4ee9a080b9fe6a3fabe325241e85f12857924cb0fa2600' 
  AND (
    token = 'ocz4CsLIrTeImKUCqA+3qxqsprlyfWXLo+EKgVrotMY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )