UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'BGPi1NhfqEmEyrKHnjGHf8J6KfqLHFH1PdC4B/b6ILE=' 
WHERE 
  key_id = 'b18fc41e0d3c7daa9039ef2f2ec8e0563dc7663d0148dbd8f34ad5116bc23442' 
  AND (
    token = 'BGPi1NhfqEmEyrKHnjGHf8J6KfqLHFH1PdC4B/b6ILE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )