UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'cGyJRHCpZOit66oeysquyOOeQzkoqRIBIAg7Y0wtttc=' 
WHERE 
  key_id = 'e2c553d2bd7955ee674e18b37e6cc1541453b6c7875da12762eaf3595a89c41f' 
  AND (
    token = 'cGyJRHCpZOit66oeysquyOOeQzkoqRIBIAg7Y0wtttc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )