UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'eKnmuwmQ2GBg/l4hjQgF17Wp/V5JyFg8ApUPInaP2VU=' 
WHERE 
  key_id = '9e00f7bd2d84f9a692ae8a8a244cb03b18188c009f2c77f712fc6614a44b277d' 
  AND (
    token = 'eKnmuwmQ2GBg/l4hjQgF17Wp/V5JyFg8ApUPInaP2VU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )