{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x1bf8d2b6cc0a36eba12823296a01008ee05671874597b91fb01e4735f20dcdd2",
    "signature": "0xafdda4339d51977b0886e5299bc3c6d9a5c67d0a6ee650d09d6002d3c66121ae472fbe36afaf99fc6befb8df71ddbf51fe4453bb45a79e197b9b362cc4e6400c1c",
    "signer": "0x27fe505A105a761994196F32091F5672586FD0cF",
    "userId": "537528609"
  }
}