UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DB7Iv8kEud4iq2knzq8+Pd5xpQQhD6J3F7pndwtDHBw=' 
WHERE 
  key_id = '1518fe06191e156cf81fe2be7dd6457c5b7345c8eee8e516289477a3e71e9688' 
  AND (
    token = 'DB7Iv8kEud4iq2knzq8+Pd5xpQQhD6J3F7pndwtDHBw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )