UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SVswNhcQtyJ1NsDsQmzflo2wqf9hDrFxd8rEz4LZHaM=' 
WHERE 
  key_id = '4d708d73034df21d139a1b75d2d15038af3f4f2167c152dc3776380387b382d3' 
  AND (
    token = 'SVswNhcQtyJ1NsDsQmzflo2wqf9hDrFxd8rEz4LZHaM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )