UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dVTuKny/CZDHY9yAhJLfu6fpn7oZU67PofChHXOmFak=' 
WHERE 
  key_id = '8b76ca8259351e135eeafa35af74598517c1e00dc8e278180caf27cbe5e60a03' 
  AND (
    token = 'dVTuKny/CZDHY9yAhJLfu6fpn7oZU67PofChHXOmFak=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )