UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'So51PQyuMYfVnvnTsOCTjyKeT8e3He0EdD3ZU5SYZyA=' 
WHERE 
  key_id = '112ccfe146b0cc9af78f0d93ef2a4a33476556fc1c4b3d3b2a48f47ba8f21376' 
  AND (
    token = 'So51PQyuMYfVnvnTsOCTjyKeT8e3He0EdD3ZU5SYZyA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )