{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0efd1ad3ad66b2ef99639d7ddf331b59fc1590ee587243add367269d84e2196f",
    "signature": "0xb561b7484629a8450510c8d336f71e01fd7baa77d4aa325266b7b833141d88a46f8e38ce1f747b351f75bda4e8d703180003d785ed80d2a228878fa553c31f141c",
    "signer": "0x86a20cdAF930eC6ABB9cb2075947C4BBBC9543E8",
    "userId": "995186750"
  }
}