{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "484365174",
    "entityType": "User",
    "nonce": "0x418590e5dc5feba40f214f91fd164ddf0152a3763cefed5d3623a7583074ed53",
    "signature": "0x6717e42c6dd691850b915e8d2dbdb73858095f4b6de326114c3b25b26f6e9d4b0587a366c395b7a82e509a524465f05c7f181998718bbc95d9f780de9f9820191c",
    "signer": "0x812890A6DBee34A114713AB8a5D839CDB1c20363",
    "userId": "354441"
  }
}