UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a9ib6aNaZVoItzBTHxT8JQFQAYk7xP5F5Q6eBtOvkMc=' 
WHERE 
  key_id = 'eb2dd5a463e088f3b43906bfcf30ee3db6869ce2aea9e566635a31e9b9364323' 
  AND (
    token = 'a9ib6aNaZVoItzBTHxT8JQFQAYk7xP5F5Q6eBtOvkMc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )