{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x774984b40752f235f6e44bf4a7a1ab8b690f3eda53574521ce164079d97c25e9",
    "signature": "0x76ab71ed6c8d5eaf9fa06db3c6d70a4636fb8a17aef444bd7799d745cd43784044216a69b5443f4bccf2d603c8cac77e3f2b8ed538bf4b1e519a230febec768b1c",
    "signer": "0x606b56d2c855D80E11C28880Ce642ee013323eAe",
    "userId": "160980228"
  }
}