UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'GSeChzHnPnRrKnSFOYIRMMtj0ypVS2NXj2yCvkHR/Kk=' 
WHERE 
  key_id = '18cc593671b996d69b5fd79c063cc2d7c2f7e9b823706bb79d3d6c2c826d5188' 
  AND (
    token = 'GSeChzHnPnRrKnSFOYIRMMtj0ypVS2NXj2yCvkHR/Kk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00046