UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'iiBuKM09lVFaNrx4OFBAWQRo8IImwb0QyB4zUpYUsEY=' 
WHERE 
  key_id = '47c639213fd1a2e656f69059ff220d56fa3c26bb76773cbc6117732a8a53cf76' 
  AND (
    token = 'iiBuKM09lVFaNrx4OFBAWQRo8IImwb0QyB4zUpYUsEY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )