{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3851",
    "entityType": "User",
    "nonce": "0x6a00c9636266b176f0a4675bd9bb9a7e4737d47babb06888426e5550368d67c4",
    "signature": "0x8a0dcc14a5a553d54225d7ebf1ffa67054f81575eaaa9be9ead5e36e1a4ecac04e7265db896db733275169d9ba816407dd5dd353273fb3ed0ca3da73973288861b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}