{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb8dfd827783ab104d36db014a2456084bb15ef1de9db950abb191969555bd0fe",
    "signature": "0xa512ca320c9c476880b048b4c039939f09836d8c0fe4ecdb401d7658697e7b6c262124d095534b818fde6452558d942d5c8ca2cbadaabcc19cc5c9b393e0e2151b",
    "signer": "0x536d6C3fe1604AdDF6acf40Cd65aAC6bDcAed073",
    "userId": "582491184"
  }
}