{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164496369",
    "entityType": "User",
    "nonce": "0xd3271ea89606aff00929441ff49f453b523392dbae8b28c002e78ba77976df40",
    "signature": "0x5fc9c310edf4f6bb3b35b4d59b879972eb97763136cf90351c9b895f6719cd7a165fa9eefeeacc42f1334b7ce43960bf03d741529ab4196259304357be0121c41c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}