{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "340690975",
    "entityType": "User",
    "nonce": "0x4636cc078fb0d3426db793e380d1ab516a5cf7f812647a19dae7fbea63645c93",
    "signature": "0x420bbae7d3d524df4eaa55de09d2c133e110562cc3cb9cd422f28bf0c62f00a83de910fba4857cd8695dd11e2f02c62c015979aceb9bc913e447a79fc9a975281c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}