UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zn8iF30kgSw9nY3gqqeew6iYJNAMmqrco6PhYggC10U=' 
WHERE 
  key_id = 'ba78633e03061fa075e34a15eef93f5fad8a22997be83f50eae1eb4f3aff6096' 
  AND (
    token = 'zn8iF30kgSw9nY3gqqeew6iYJNAMmqrco6PhYggC10U=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )