UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rK2L7td3DJjJZndOF6XDQSFLHDTxiHokNMtwvgkSC+Y=' 
WHERE 
  key_id = 'a2bf771a834fd14c8c7728c40347a53a71596e7d157324082e895006560b3305' 
  AND (
    token = 'rK2L7td3DJjJZndOF6XDQSFLHDTxiHokNMtwvgkSC+Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )