{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1495091",
    "entityType": "User",
    "nonce": "0xc131a715b5c68c53354a4868348ee363626d5f96bb7ea7552c59136d8d12e9ef",
    "signature": "0xe83b8533e006e153f325e7e758dc0789b67aca10effd8b0d95df899cb5aeef9c0079edddf954210976e24dfcf58c658060ffd88cca9c3c684363c23a0a79b2611b",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}