UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'fkeyCwLXctKdejrrKKun8AJz2mIffX+weuGRaSzA/P4=' 
WHERE 
  key_id = 'fb68955644e15ecd531e6daaa1844ec066bfffd56db9ddc85a7863b7e92d5d7c' 
  AND (
    token = 'fkeyCwLXctKdejrrKKun8AJz2mIffX+weuGRaSzA/P4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )