UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6sFyNCV2tlngEgyoLiJNiCEW/V5HpbYByK0iofwFpxY=' 
WHERE 
  key_id = 'b3dfe7a515cb319e41265bc49e03aabbb3e61af4500a840b60706a659645af38' 
  AND (
    token = '6sFyNCV2tlngEgyoLiJNiCEW/V5HpbYByK0iofwFpxY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )