{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "725523395",
    "entityType": "User",
    "nonce": "0x03e6d62c489102c285ca32a2c164b480a2e763fe76939d6e9d0798da735b56ea",
    "signature": "0xc59a64df0b1e40162404e30ff0646126136d0979ca82cc17d3a63085e6325f234299ca16bb3a2ff3e697ad42e16e9a973157ab11a7b37e53aca4a83d0caa90ac1c",
    "signer": "0x0d0E0D19797534AEF52736C60B52793E9f88e24F",
    "userId": "603294620"
  }
}