{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0xaf8e5b22be1defc3d6c173248fe4021a9b87f91729cdec2912b1036d783eea58",
    "signature": "0xbd258fdd6bbd58e215143254a83cdfa437e59158339b573568b4f8e127dab53a7843bc5a14418bf67c47210f19653023f7b490e842a6535cfd6799f1df7282451b",
    "signer": "0xf3eC8D1463A23CdDd8e3137d4e971DAD05FB11ea",
    "userId": "451435291"
  }
}