UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MEP5IB7m42/e2ujbbgrauQE+BUdJwdilZO7HKmZIHG4=' 
WHERE 
  key_id = '840ccb5ad590e5fd2a6541e9cd13731bac655fbe7216b8b8054bb23b495121c0' 
  AND (
    token = 'MEP5IB7m42/e2ujbbgrauQE+BUdJwdilZO7HKmZIHG4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )