{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "825313771",
    "entityType": "User",
    "nonce": "0x89251ec932e40de645478c8eb04405323a732074c0459732f212f575e933c734",
    "signature": "0x1e0e05bc3982f330d98727038b960a36e5c48223ad80283d928acf509f9aeeec6d6e280b38d9c8fa6980baa4ca8210b2cc451c53c608eeea47f4ab490395e3cd1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}