UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ZqlkURmrSjZYZjbwCgntIp8GNVpeIuw639P8tCJPeUg=' 
WHERE 
  key_id = '81550dc4cd951d3784c608d27fd82995277ab7c57398ddce563701a487fe85a2' 
  AND (
    token = 'ZqlkURmrSjZYZjbwCgntIp8GNVpeIuw639P8tCJPeUg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )