UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Zm1nPqCANORt9yqKkwVzVeXWFMD0xdE6W5uJvoHn5u0=' 
WHERE 
  key_id = '8bec53ad01741634b77e6f815e7dd4a58facac084c6adbef40631bfdeb254667' 
  AND (
    token = 'Zm1nPqCANORt9yqKkwVzVeXWFMD0xdE6W5uJvoHn5u0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )