UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UUbbEi6K2ERDVZZYg9US5oANvWHYRqV/iX7qrUvydew=' 
WHERE 
  key_id = '9297ce4bf507c7d426a6766308be8ef8163fae082fa6836d59939090b69213fe' 
  AND (
    token = 'UUbbEi6K2ERDVZZYg9US5oANvWHYRqV/iX7qrUvydew=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )