UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DDtGrLkhIiP4OcYUkQtgUqjm9sOE9i1fVQgD5co0B64=' 
WHERE 
  key_id = 'dd4d36b1a17d40beab3be62e2a30750be185ca7db199636b647a354aa337031c' 
  AND (
    token = 'DDtGrLkhIiP4OcYUkQtgUqjm9sOE9i1fVQgD5co0B64=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )