{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5abe6108ed62b0c5a8920ee29088724048ef7858669c0e218b3523277ada04bb",
    "signature": "0x20f44128f703fefe42b872615bfb5376f9bdbb3ab8d25a7fd63761644b5722f01c7626042e87bd8b47684d78e5524def6e5f4b91aee0de2cddcfde8bce0906c71c",
    "signer": "0xaf687f55Ef60bd4a787Fb6bF971B886C8F6AFDe0",
    "userId": "986541736"
  }
}