{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x3655486f1677e2a7474b3d2e7edc7c83a1a42965beda20caf2c7e360be23e5fa",
    "signature": "0xe42234d75605bdca5dd8d65aeac4731b56b6e7fad2be5055b1d42c54b768cfa86abc99f29275440b9a58840e02ac66361fb14804d923632346d2e02e3b6823c11b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}