{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xdfbbf06843161279303d3d73d5b36bf631442f7059a5a9b5f3a6fdd14e57f890",
    "signature": "0x6a6ce52d783172932bbf25841eaba7ef9aa2e2c21795904e377b31acea47b10a4800dd85d4c627d537bd257b7ea0f3c2ba6bb6e7b0bb05c0936712a4d6bba32f1c",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}