{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x579853c9db2ffad183a0831773e9a1f2cd7b09901230e5b5e23054f7a6a37bef",
    "signature": "0x95fd6ddd472710992de0c40d3a2283dd4c7fbfa609f296d512122c02507379723da334f04c06ef3c931727772972588f29272ed25b6643ce767bcbf8648b980a1b",
    "signer": "0x52D6B8976B9cc90C2d4bFF80df588576bD744785",
    "userId": "979158864"
  }
}