UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'po2s08N+PH9NfhrOZ3RqKQQ6a3iXtBVliUwEZ9kLMjY=' 
WHERE 
  key_id = '74f909e7dc9816510da42f69c37be35d243733e7401f54d94a33165c92305c40' 
  AND (
    token = 'po2s08N+PH9NfhrOZ3RqKQQ6a3iXtBVliUwEZ9kLMjY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )