{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "406225571",
    "entityType": "User",
    "nonce": "0xf9f39943dc6e1a3d4cd958efc1b88b8c0d5fa36c2bf0707fccb4ca92800522f1",
    "signature": "0x123bd041143666193e0b40fcebb33cd24ad8dc1680c2dd875b648aa4c2903528721cd2cb5937d0e1eb97515a8a1a30b04af395ce424193217b381df97229869f1c",
    "signer": "0x98fC2b30E6e70e62dB2b5fAE7b0292DE3D4323Bf",
    "userId": "480962013"
  }
}