{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5642",
    "entityType": "User",
    "nonce": "0xe791ca5ce17de464fd2c1e87e4ea880d06d112dc3d08138df236fd63d970082c",
    "signature": "0xff1e48b4909690bf4b9b94e3fc49b6b60ab8784de5771a481552f69218f47e9b399e42385a5064e772d8dea11ec0ae175c885a7262ac1b62c6f4b4646713fc5b1b",
    "signer": "0x9b6bD4505e2bCfA88acc8680F463a96DAddf1d0d",
    "userId": "213208842"
  }
}