UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n+XJyh22qQdKx8eDRm6EV12e5n0cXdZAsskQoPIwJP0=' 
WHERE 
  key_id = '914d83c54a406184a4879fed559e028c7ac90ad3208be49e669767327f0f8b9b' 
  AND (
    token = 'n+XJyh22qQdKx8eDRm6EV12e5n0cXdZAsskQoPIwJP0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )