{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1010239",
    "entityType": "User",
    "nonce": "0xfb543eaee9c4f3047d8575972bdfa1e07c41421fa98d198945c29e272bb75f34",
    "signature": "0xc591dbdddf6ef442e3c37a94c7fbc5ca9cce5932d221d6190b8d0ebc7ddb469374c655862e93793a6ada973d25c09859e6f0737ca97065959ddab8e3155fd5fb1c",
    "signer": "0x8D46758848B46fD16d027970035C88c708E03e3d",
    "userId": "870591918"
  }
}