{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "460109700",
    "entityType": "User",
    "nonce": "0xdb554f1349bafc2d7eb246c981acf3603431a8d8870ca7ddde0df6475f11305f",
    "signature": "0xb597f1b5b4c25d7c87e2175a2285b03787f747569f2c6650e7321d07671586c700a6718b82dbb775a3fabd49009543771bb954c7c2c9b7562604031bd7d6cd881c",
    "signer": "0xfB6436C438F897b7eA739876B4Cfcca832868820",
    "userId": "512354652"
  }
}