UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '2+QdTzA4zIbZv7/3gMHCHgZHRTZ9EVPK7BpDaPeeiPA=' 
WHERE 
  key_id = '6a703172d837e1f045a9f8148051112dc194094dac9fd60323c3379b79ba7994' 
  AND (
    token = '2+QdTzA4zIbZv7/3gMHCHgZHRTZ9EVPK7BpDaPeeiPA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )