UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'erKtmHk9unCq9ENzHJaNUwkhI1DTm7rnfOFsQhDVEsA=' 
WHERE 
  key_id = '31b0fb5abe32c3ff8b46369bd2171a6452a3ffb3039c6d0f2753e841b31c4eda' 
  AND (
    token = 'erKtmHk9unCq9ENzHJaNUwkhI1DTm7rnfOFsQhDVEsA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )