{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6bd11f9571cd5158098cf996d274db609073907432d1e7fae6a471c9eeb6c75a",
    "signature": "0xddbd2dcd341c44d705b56df1cb6e1cccf32d57b8ef8fee7cb0c28bf7b1494d034f7a7800374fde42f6230c5e9aa5100705d127c8aa149348923a3be6b4b81d771c",
    "signer": "0x450e78D014CCDAe44e2CA973Daf729184AE9cD6b",
    "userId": "779322585"
  }
}