{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "230019",
    "entityType": "User",
    "nonce": "0x48f6db7ac1624d54bf0dd05a3a7fbeef72913b72fa219509d4ba3739b496ecf1",
    "signature": "0x1d6c3bdc4703bf4f8fa76da044642ec867e917bbc0065b087b0470eca15973451c68f730c3fe9f6db8f8082d308d41e51aeba5b3e7c86816564f7f848b83dcb71b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}