{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x913f0e9834b08ff9bc1626053491be2e1979b1bbf86cdfaa66b4fb4caca2df48",
    "signature": "0x8daf46e73b446fded532ce4996f3f010b11f11b384767e9e6cf470170723a85a2f3c0db9a7d136e625fb9f42fac87084e9263714e9cde6d48c73440c0aecc72d1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}