UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zUVNcPbXoq3yi9fFjznRIU/vmktxdA3nv3ONbtpGkyg=' 
WHERE 
  key_id = '1a8a4bc874ca7f87b831dec5dbb63baadc938bde43df3abffecf9e697f7b6ced' 
  AND (
    token = 'zUVNcPbXoq3yi9fFjznRIU/vmktxdA3nv3ONbtpGkyg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )