UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gUPMkX5VFj250nGx0S0Lt353bwrpavd5IACF9aBZdE8=' 
WHERE 
  key_id = 'e1b657983ed74790d90483d6aa25a43af0de7632fc8c4c49559b91f13b9e5d2a' 
  AND (
    token = 'gUPMkX5VFj250nGx0S0Lt353bwrpavd5IACF9aBZdE8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )