UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r7YtQ3I4Cc9T2P/frhD0vjvPt1NrBYtEvca8TQzIbOM=' 
WHERE 
  key_id = 'a794290ded220976ef91bbc482f6d1021e54675f34bef2fc8b430f8736703198' 
  AND (
    token = 'r7YtQ3I4Cc9T2P/frhD0vjvPt1NrBYtEvca8TQzIbOM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )