{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "121763",
    "entityType": "User",
    "nonce": "0x49901331886e372016fe338ef74b57770d0bdeb74b8da07b29ec0e4a7020ae70",
    "signature": "0x3e181e089877c10d6a8c501fb7eedb34598e36641693fcaad1e34dc646f3a13068ee9314f5cf9663093c8af84bf44bcf6246353088dd45da554fd427aa6365061c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}