UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Y96ijdiO9UIq6UmQtwiCIbA7/9O/Z8tXQ50PY2KuPBE=' 
WHERE 
  key_id = '311ff7bd206f707abf1eedc5c65f6c94dc9bf9a1655ca5198ccc259bf13a1e42' 
  AND (
    token = 'Y96ijdiO9UIq6UmQtwiCIbA7/9O/Z8tXQ50PY2KuPBE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )