{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x2fba58fe5bc286c80d323c2c34fd91ae919fd6f263609a3bee37a70a62098759",
    "signature": "0x41ae6d4e564f7f647e87b0f86463091a2153e5bde80f1a5e918b92f5ec33f70d61347dc8bac05bb31955b9ef8c1c3105a81414cb1b5e9f31ecd3654953781dd91b",
    "signer": "0xcc9cCc523005B394381478381D34DddB8558A28f",
    "userId": "957873025"
  }
}