{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0xbd8efb4e4b5844949939487c5535f26baaa6482bb4a83a892752a0d55f91a454",
    "signature": "0xb665b092786da8c5ffbf61d46b3d13700ca8d47d56343d8ba729d487e42f4bd14584a646d58ddabcd5e90c8122e054b72c18ca57146d922b536ae285ef3ca99d1b",
    "signer": "0x2881CC161622bC647b88915D64A5354a85Bdd555",
    "userId": "64534769"
  }
}