UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PDc6m4ku57DPWX+TiAPKkaEb4nVwhawkIZ3dJxXtIKw=' 
WHERE 
  key_id = '79871022949b2d8f6b8cc2ea893f53167d671bc5babbd1fe975dab0a207eb4a5' 
  AND (
    token = 'PDc6m4ku57DPWX+TiAPKkaEb4nVwhawkIZ3dJxXtIKw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )