{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1867438",
    "entityType": "User",
    "nonce": "0xfa1d033a0d2933569d8666dc791381448b40d93cfb70f6a1d93dd7fd2eedb108",
    "signature": "0xe6ed125899f56dd0b86155751ec1ceba1c74fbce43e8e92dfe9013fead47e84146eaef49d2374b9bdee8abf4567ee91300e18a0e8e05eb9cab73c03ab4de87541b",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}