UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zKdnidJjPg+vsGlltZE3n7EKwShiSOpWXUtWYORA29I=' 
WHERE 
  key_id = '91c7dbd2294fa9e238db566326f33e0b293da53d35f47b0472eb53f944c105d2' 
  AND (
    token = 'zKdnidJjPg+vsGlltZE3n7EKwShiSOpWXUtWYORA29I=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )