{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7cf54df62de60b650171df7a77aa25dd7c660e8908ac6a38e9e7391398bafe18",
    "signature": "0x4361dc8553c2475e67b714266bd063b256350c5d6d13fec9391fdef19ec76b0f1ea4345503b5a316d8e08906055f298eb261734d3246437764a50cfd95b0ec1c1c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}