UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/6x4FMZi047VcLXM2b4A7CBtwJ9PHpiXcZELLolJ54s=' 
WHERE 
  key_id = 'ebf55fdc14302ff42e2ccda479622744898158d774831ff0263539517a69a390' 
  AND (
    token = '/6x4FMZi047VcLXM2b4A7CBtwJ9PHpiXcZELLolJ54s=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )