{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863022589",
    "entityType": "User",
    "nonce": "0x6ddd3adb42a1e617eccebd64467d27d5bb5f1ac4da0f5a03275d2349c074c9e0",
    "signature": "0x297a718d9264a3e7ed8b9b948c256923972ec8527beeebb9000873430a398e7a538e8a06adf2fffbbe559e531c1b3343e9667cc4da1f62d32f508cb58521ed291c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}