{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xf8386a3b9c848cec6886e7f3978eab1e746cd370d685c7fd538f332df6e8dcc5",
    "signature": "0x06a29d1afb0dd490692d5ccf3881f6bcf25f59d76fd491e767a483875848d1c03caa53af384bc6935b0eb2efe09e179db6c8a06f6e586f46fdee55bdbade12a71b",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}