UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'EPrb80oai0B8i+zh3E0DLg+QkW5R3bpq5mUVZPYqkZk=' 
WHERE 
  key_id = '8035b51636eac46a4b86bc0d1e6c12bc9d85912b8f2db27265676ce1eed9802a' 
  AND (
    token = 'EPrb80oai0B8i+zh3E0DLg+QkW5R3bpq5mUVZPYqkZk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )