UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'p/Fkei3kNLfLGnupTi7xqnw5ZCj/QcQuUylfyqKeFm0=' 
WHERE 
  key_id = '974e54b2983d59669bcb0ff8c3c6dd13c1a1d150a935eab8e9c45b593c25522c' 
  AND (
    token = 'p/Fkei3kNLfLGnupTi7xqnw5ZCj/QcQuUylfyqKeFm0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )