{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xcbd4a836da87446fe35f5261c9daa081c4e4a2d5dd87c04729a739cce07c3799",
    "signature": "0xe8780d0c8e333add900376073cf2660960d82b7b73effca222b22b1968da59da3617228bc83c600389781d2e5c60757338b884b4acaeecf57d7e86485f64945a1c",
    "signer": "0xC4e201BEaDD3933E76e562c99f9F367Ced3f68d7",
    "userId": "533673360"
  }
}