{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "161554",
    "entityType": "User",
    "nonce": "0x8dfcea2ad2c5ec75bf9cbea457f3427d8cef31296b24b78eaf938079b5c7ffba",
    "signature": "0x71d67dd1fc72dc98f95540ec69c2454c2c6be6b3355b05a16f7817ea2e862f2f2ade65466e6ab909bf2fbfb5098abb208b0971dfa2dbb27725aef886e0c330e51c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}