UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'erHu1xRiRytCM+tlyeSt/H58dTJxsJaZzMw1S0liw9I=' 
WHERE 
  key_id = 'bf7bc25755e8c046624ad91bb8403b5c51ebbf09f75eaaf50f8d1bebe5e5d3b9' 
  AND (
    token = 'erHu1xRiRytCM+tlyeSt/H58dTJxsJaZzMw1S0liw9I=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )