UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KuRSqvAiNyYQaTcAxj7xrw+s8nywxNstuj5KdourznA=' 
WHERE 
  key_id = '769d50827ee51960d04155d08126a60da40325c64d50b283b7e3e18d0e980452' 
  AND (
    token = 'KuRSqvAiNyYQaTcAxj7xrw+s8nywxNstuj5KdourznA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )