UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'vYueVNzfBvBlE5IyRCdO41xpsANbv0uqTVMOY/nZCUs=' 
WHERE 
  key_id = '995d31ba448e0e78f874a54344ea4cc344de11e8d084ed82108f2989c021b0a7' 
  AND (
    token = 'vYueVNzfBvBlE5IyRCdO41xpsANbv0uqTVMOY/nZCUs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )