{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x747dcad0692976cccd5b0ed11fe03acf7fcd9e4f30427d60037ef1a6c9bdaeed",
    "signature": "0x45d1bbd2d3bc7952786f64c0b6f7f9dcdf6f75abda4df80f658b82a244a2810d78a2aceee84ca957d8cc261998a6a14e1c5d2725377b076410b1b470dda5a4141b",
    "signer": "0xDd5C24a86eb4cb09CF9f5254bE310AAf0006C690",
    "userId": "348563086"
  }
}