UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MEGIbG3prVgYfXl/nLdqIppNhMSRVTj4KnvEnDU2AWc=' 
WHERE 
  key_id = '566591ed72671aae34b9c992ab9a4aafd9eaedd0260d346a395bc64883fad785' 
  AND (
    token = 'MEGIbG3prVgYfXl/nLdqIppNhMSRVTj4KnvEnDU2AWc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )