{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x167de0dac42adbff71a82fd4465614a3467d94070dc1449f4d6cd42b7e87004a",
    "signature": "0x66b654a641b2567f191247bdf055a65b390465dbb07958cdbdae1984987ebca9612a948a1d648bfa5a168c679fd3b358a4a11f2e439d12ad97be92b6b63a04b41b",
    "signer": "0x0bADAcB5BD8eC37096c8448C192eA49B12c4A1D1",
    "userId": "903251667"
  }
}