{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7e8481ee1868100b2b2bf48ea483f3fc5daabe66b81004e2cceb3457354a486e",
    "signature": "0x8e203d8e5aa2c16bc47fa9e97dce796fd29b00ac418ddd53122ee1bcba7d7bef3b859f178106e077b4a4142534c193b4e52629ef20ed0c5c69a0d74c64d45c5f1c",
    "signer": "0xb033994272fA32C545F53F06F2FD1A19f37FFE68",
    "userId": "248319646"
  }
}