{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "728570067",
    "entityType": "User",
    "nonce": "0x8cbddd85f7dc7b6dd47aacd763611ce4682e0ed6d7dc48560eb96b9844da07c8",
    "signature": "0xd91704c6fd04991b69bc8a5257a59ba6d9c1891600b3b7cb10cffc7c233b0dd00628436b221c53da0aa1764434797700649eb3d471671de125e05b8a48a356171b",
    "signer": "0xF6F9F433Ab5dDe3c96D63C2fFAa64b610599a410",
    "userId": "80682"
  }
}