UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'I4nUPw9c5X2hVKQgoc7H2ddEjCqK0sGZhGTXXifMq1I=' 
WHERE 
  key_id = '305b832868b202ed2962df2b865e510b0ba45b07939109e801fca555c7d9dd05' 
  AND (
    token = 'I4nUPw9c5X2hVKQgoc7H2ddEjCqK0sGZhGTXXifMq1I=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )