UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8rpCNAzoO0nyRK33dMu8nUUVFgfpgM4+OS6TrWP4G/Y=' 
WHERE 
  key_id = '50d1fa3273408cbaa9e2aaa2d438694c62d537d047f4ec007b374f2e112fb9ad' 
  AND (
    token = '8rpCNAzoO0nyRK33dMu8nUUVFgfpgM4+OS6TrWP4G/Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )