{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6f3f03194d4a5a9f600e8c943a2c787890a58feeba8989aeaff66c19ffc37607",
    "signature": "0xdac67183cd57bfdb2236e8a1e292966706eab0d9dee0c9045c2146ef09c80d2808aab69c86208b5e85b52b02e2e55fa99533937c418ff08f3b0a97a16e6535981b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}