{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x12588717f181a6715fc764a9ce105147fb5e5011233ef90163d8dec690113925",
    "signature": "0x95966c6e687ade294994e4d2f59734cbd2415813cc24597801b22bfa617da9c5510f6ba652f8de7f51a2b68fbcfdc979d572faca19bac70b97a9aea13b22cf751b",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}