{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x82a82235e98e461eaaf0fadad3bac5c438f2a3ee1e31d79bb006615517343182",
    "signature": "0x70ebd00342b4d308a7300f512a7a3badb5b8628e92d37cadf8237751de51e45105d36770bc70a2114813d47c28fedb35d042a760329af2ca25678d9b625c350c1c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}