{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0x3c5c770c1854484333cadf626736145bc4a89a6eae146bd7a3871aeabec2eed0",
    "signature": "0x9df3c5cc6dbc6b1993cedb84b21cfd47df074ddfa4f4e29751151c387a21047f329057792ff3305a2a3c52060d0ff8b388f921b758da2eb24605cfe339bf08211c",
    "signer": "0x3872417aC9CCdc743F396f6d7A6872e91dB934d1",
    "userId": "701379462"
  }
}