{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1319281",
    "entityType": "User",
    "nonce": "0x89764a326004ec59d16f23a34bbf19a77b1857c34ca625f734a48e81ad6a45f2",
    "signature": "0xc993bc29d77bcc07fb415623582efa67ce65e58e7bfe10457664ddf9735ad64b3faad66d60c430cb1e2ee3d13454a17a45720f03e62123bfd811d00c889c8f7e1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}