{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x8c1879a8ec4cb8ba8e84a31237f7ac2694fbab435b1336341411847ee9336930",
    "signature": "0x9bc2b51d133ada15850b9a3579a0a5da360f0ce7f2f717569ce2d5cfd0bb60267370eba1aaeb086e437cf3e522429a7814a216fbf20dbc4a4554cd729a8afea21b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}