UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'eZrXazA6hWmOCZ1YX/6mUTedbe3HZJ7lWuerPPIjbxc=' 
WHERE 
  key_id = '51a65803d6eec2d4e426169650c528eaa21589257e1f725e9ab03d34edcee6bb' 
  AND (
    token = 'eZrXazA6hWmOCZ1YX/6mUTedbe3HZJ7lWuerPPIjbxc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )