{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "209152",
    "entityType": "User",
    "nonce": "0x4789f163c7dbdcf3656b205920eb9b0088980cbe908c9bb6e671d0d5bcfc49f6",
    "signature": "0xf8983be3fb478f6d317007286928dcd816a95683c415edbfef6989a69441bcdb0705ac3b85e70904c6b520d2dc52286967c84a6070a50dcfcedd2dbdae7d60861b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}