{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc770ca2438b061c17418d14ffbbb6d807548bc63579e4da7631dac8cd69e4bc2",
    "signature": "0x2443766da22abd1e75f3dcc663f4ac322f8fac1050b4f8eca6d6dfa7c629741534e43c704b61e70033634d606ef18660c54d43288d825182d2ccef568ca8ca791b",
    "signer": "0xd8cF9b24Cf8c3c0e8Da4e5ddC4f6d3B449Ba6d7E",
    "userId": "606849837"
  }
}