UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'yRx/LfD329txIErs5/aRVqvYmx/eC/ygIX8aMBlUUY4=' 
WHERE 
  key_id = 'a2bcf298677bd26d0596bc95d1d89a0f7b55d69942e576b024464ee208abbeb2' 
  AND (
    token = 'yRx/LfD329txIErs5/aRVqvYmx/eC/ygIX8aMBlUUY4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )