UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8WHJ6k+ct2nQYUKCpBFN5xLhx+nAw2PGn2w2ku+qDHM=' 
WHERE 
  key_id = '9f6d7bdb02a48d1d5a9730fd43026f85b615087e99e204842cce844ce594760a' 
  AND (
    token = '8WHJ6k+ct2nQYUKCpBFN5xLhx+nAw2PGn2w2ku+qDHM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )