{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xc29605d1ca4c7723dccf6c5e74ce91e26cf98be5a0791f9850b325ec838ff5a6",
    "signature": "0x015569da2899816112a133ef0d8cddd8e78716f1d8e3ee464ce2db6397c3ff472b6980159e4d7b5f9b9ed08c0e2ebdec3e719900cae6490f48662de3d8241b9c1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}