{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9686857479e229097b01eec327a9c25fcc02f69a93cfc2d838f01073920e630c",
    "signature": "0xa4e3774e14120dc13c205a05ba6bbac3dc81c9fee8a444d4dda525f1f0c35db960591442f2059362fa0eea585a6b07fe1593d3d1224f67129ff1960de31079c81b",
    "signer": "0xF47ea9e9a2541B7F007c60BEf964de6F722F800e",
    "userId": "793657495"
  }
}