{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xf15a00affef05995fcca002f382d92280aa7e7268ee617dfb7f3d13a68475a25",
    "signature": "0x2606b244de2051afac1b1ced41faffb214580ad3725fd1245a7ab68f57452a66127e96806197d6f5b8387eeff5bd9442bb627045db2bc6402adb27a7df725df51c",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}