{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "928381185",
    "entityType": "User",
    "nonce": "0x474c7c3677144b949d79c565303113d16cd3b32452cb9f1a672a87dc0db7183f",
    "signature": "0x59972f213bb4dda304743d0edaca0f9de37fdfb0c2d78f5e7c21fa89e52dcf7815c012e312ccdf6f12c7f25d51449e03773325fa8b5bf6cee7b7aca605d51e311b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}