UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'I+Rc4Byxi3IcC5Pwb4Bv7IOEC6TGkLlrBOVL6fwVzCE=' 
WHERE 
  key_id = 'cb4deaad8118f251b120d0c1f1d28ecf186d64ff6a69f40d19d0316a66c8c396' 
  AND (
    token = 'I+Rc4Byxi3IcC5Pwb4Bv7IOEC6TGkLlrBOVL6fwVzCE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )