UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dMJVGW0Zei9wx1Xeba0A0/JJnjSrNxr0wOT5PwlH7ww=' 
WHERE 
  key_id = 'ae11df3a20bad9e17ac6e4171b852cf59e8446081b2af00f4731f5f6f33686f0' 
  AND (
    token = 'dMJVGW0Zei9wx1Xeba0A0/JJnjSrNxr0wOT5PwlH7ww=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )