{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "117522",
    "entityType": "User",
    "nonce": "0xaa21b8a131f772474a1fd25cf574b69ed8bc618f9849469b869db3bda256fbb1",
    "signature": "0x78c539ca4ad25ab1e379f6aee0bb53762e831f0d3c28323ae4d495c08b5cf06a6c75f367d9779e4062aee6be80af0d56e3f19df27e0befba2563689678ec8c6c1b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}