{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x24bba4c426cc233ac4719c9731b8c5c085829c062147d7de80e4cff740503cb3",
    "signature": "0xa088f4c70a5b01c5e3ec9341edc3e383e8f3151f80ce75109755ef4a216471137cf149848fcd38f1850d2c5ec5171c3146ca7ed3cddb48f3a10a9caaecf550031b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}