UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U6a5L3kIN5Qd02zKgABit9oRjnZE5izMD2nQePmJHn0=' 
WHERE 
  key_id = '81baf0cac4ac76fa22943a47775b4dc333ba136db302f0f9c7b530318714dcd1' 
  AND (
    token = 'U6a5L3kIN5Qd02zKgABit9oRjnZE5izMD2nQePmJHn0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )