UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'TeQwIgyt8PxhtNGM0hcTyEkXgjUCvCv8lsrgu1zGWfA=' 
WHERE 
  key_id = '975608dd72e9afc9492004d73f8e8d1adc9b067eeb1f537c037743be4ce19ab7' 
  AND (
    token = 'TeQwIgyt8PxhtNGM0hcTyEkXgjUCvCv8lsrgu1zGWfA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )