{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x14a25f2f2b4c1356b6211e33dc0d683b93e8a6f20f35aae25b8c380e3e9a61ae",
    "signature": "0x1fab2c9c1e307d21e6227b00adb2384c8f670c3b9881b40c9a414acac89fa1082c45ce2f67744f8c91d5581319cd6dd14879b980f676862fab3db485f6fc90321c",
    "signer": "0xcED3bB41dC25f9Ee71c86D77eF68b745550f8C9B",
    "userId": "593392725"
  }
}