{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1452833",
    "entityType": "User",
    "nonce": "0x3a6ec9af347b018e4f2be5bd463405e8f6b5bc9089736faa65d1ade77ae4800e",
    "signature": "0xf77b7bea78c1286f3b288b54834ed08b34a695b45dbc16d7c99131052da90ee23421221b0131356e065334e16d8df3cf9bf995aa9a820ca6708683bbee445a641c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}