UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nFMMhYmQy5gFzHEo0viSv+gfx2Db5SFpq21UKSF++Yw=' 
WHERE 
  key_id = '503ac2d8e7eb108639fc399f2a21ca6e61e3b1503ded1e2a4ab063ace28fb169' 
  AND (
    token = 'nFMMhYmQy5gFzHEo0viSv+gfx2Db5SFpq21UKSF++Yw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )