UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/I2uvloRabLQRKOC9YYrLX9dG/s4tjmn+gpSLdEiA8I=' 
WHERE 
  key_id = 'a15d7709fc40a075bd407d99a9faebc088564b614650488cfbde487f9d2e91bb' 
  AND (
    token = '/I2uvloRabLQRKOC9YYrLX9dG/s4tjmn+gpSLdEiA8I=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )