{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "208771414",
    "entityType": "User",
    "nonce": "0x4fa3a720744596f80fd91a503360b81fb5d1b9b6d11723b2ad50a69afef8b6af",
    "signature": "0x3cb55893b3868081e5c6d4dabb456023ac7098f31133015d8bf49a2b328a430b3e86738ed127c2d3e0db3e9b45c560fe44736e155b0a520da998d7bd28c071a51c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}