{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x9e9580796c5350afa92bac5b385e45ce53a5eb9044fbf1369ebf354e0b129e8c",
    "signature": "0x7e40bb1903609eadc16328dd5aa8c453bba13abbe9278cd1059d2344e215fd2f32bae41a55abf648c177fe69944509132c6730a42f88584b413c82895ebd1fe31c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}