UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'tMjP1gUCxW2c8o4qFps36BB2Rn3cj8woqHB6vacx12g=' 
WHERE 
  key_id = '81c71d98943d6946c0845f8f93976b78ad640b8985dc01c2fb576f5e35a204a2' 
  AND (
    token = 'tMjP1gUCxW2c8o4qFps36BB2Rn3cj8woqHB6vacx12g=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )