{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "165857",
    "entityType": "User",
    "nonce": "0x5723703179dbe3a3953ff510e34d6ea225f74823334d8f243fc1117c794c50a8",
    "signature": "0x50adeeb81dc062b14c55e46036300a5dcec313564e796de52e472adc4f4636383d62618f9e14470b57840affe76f67fee70b3b285ea3a18ef92778452842061c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}