{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xc298a48533da1970d5bad347d76c8167c37aefd086d73e94a4478fede7a3729e",
    "signature": "0xddb475b5c063b265da2f9c5600d6d6da09ac2798323a45c698387d60147aaf15498f33f92f2372b0fea827edab7eeb332e1cd4aecdce8390d852995238ce19e31c",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}