UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xn0GhCVK0DFSpH1OyqluxqhstgAlqYAuh3VDuJpyfpk=' 
WHERE 
  key_id = '3a0dc40b026eb64a3c6d630a6eb2d7e5f3aac376f6d8c323118f87a25199c7d7' 
  AND (
    token = 'xn0GhCVK0DFSpH1OyqluxqhstgAlqYAuh3VDuJpyfpk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )