UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n1r7G/8H8nwhpLTRCb7aBEw5UfymRKKCkSVYqubsmFc=' 
WHERE 
  key_id = 'b85624d60616ea66fed16657610b5f2f35a7998807aa82db3a7290c08fef0b31' 
  AND (
    token = 'n1r7G/8H8nwhpLTRCb7aBEw5UfymRKKCkSVYqubsmFc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )