{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x46235741cc31c5afad0f58790fa6684f716e6afe101087815b83cd7e9255f538",
    "signature": "0xd5a886b196698036fad00e268931da7f3077aa7b0bc1168dc33ac5d77b63840d04e3c69c18dfeb26950abbc63fa8b27602ed775416d209077b895fcaf8391cee1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}