{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "742628774",
    "entityType": "User",
    "nonce": "0x9a95b48698de95d874f94ba6c91ba664e480ab2ee687377ea87cbcd31277e441",
    "signature": "0x0cebb03e06f99e559f64c762b39900e38659fc629deacca007585a550ae115692f54848ccace729053aae10ea6adb5a67aff72191ed40bc7ca1c6fd8b6fc8c351c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}