{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x78e3df8a3e6aff6743d2e4d7c211074c54a817a3def006dc39a3462c943bc9ec",
    "signature": "0x471ce3c315b25f60532e89fb5defee5059afc4fdf3a8bf6fed3cb97cf0a0c84e31fbded6844d00118de4186f23e7ad6a1b66d09304c908cb60ff36aa04f4e6041c",
    "signer": "0x1f41A2e933113B3030B213309D4CEc9368dD271d",
    "userId": "558476033"
  }
}