{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154589",
    "entityType": "User",
    "nonce": "0x41e335a6a8a04c785e9902c4710ce1a541c40263d1652b4b4c25b5351a7e3652",
    "signature": "0xb08adb5731cb76483011e07facb9d833b1be432610607ca87c4ddd54f41bb90b6da0f2d4c2b51a15ef3aff0e3d21e228a1d1cd29c0c4eca82d20861f0f3bcfe31b",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}