{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346849",
    "entityType": "User",
    "nonce": "0x2e58589d06e4b5afb0040ad42d7e3c03a5b84e2ccf2ae31012ba6eabad4bfc5e",
    "signature": "0xb1fd93c881513fae042a3e7f0f9b800335678484481874df1f9de16d16d3ddbb2cdb11e987a94b3750bd85b7bdf8554d6b36070499edbbe51898447a311e02ab1b",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}