{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "966718637",
    "entityType": "User",
    "nonce": "0xa529dece654066a9f9e2711aac066f8f75bbb22267022480b293772cb0185b66",
    "signature": "0x84c66f01b77f1f22b0e504ccf814f20bf493c224edad0c663ed8237d541a309f73cb63339dc4a3367282ff32550b3f2144884b0941213915cd7f428713860e021c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}