{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "106406",
    "entityType": "User",
    "nonce": "0x73e659c0d6f7a6bd89f52cea8992a0db801afaa7045dd720771af45840d05dc3",
    "signature": "0xd9821dbc47849817a2a504144f3c6f4592c2eae911817a6e615b0cbbfd73d9183b0c22ec3e77b25d6abf11c6e5bb3018af2cd23f8a78e8e4bbdcf6f29c0e88381b",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}