{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc9d4b62c9290f5222d200d46069bf8e1606287ac4195bc0ee675d26b05e4d68d",
    "signature": "0xdc96f8ad3505e4f5417d9cb9b28182d657e357f45f23b537c202835685fb96fc5d37eb1a500878fb10a4c0085a327635c1d683bf0cfe894d16557c65991610171c",
    "signer": "0x6EA7E7d30eD7f9423cBA29A32493E23A8a8080b4",
    "userId": "530236516"
  }
}