{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "239411",
    "entityType": "User",
    "nonce": "0x8c26359dec4b58671d5f550c9c287f1757b4e30dc37c1f333c84b48a9978d679",
    "signature": "0xac4451269adf69de4b588ceb4378b08d00edf79b6d972c2fab0a854425e1d03e5ed09835037c68afea834b37bbc013b634420363b87c9a854e40e2770e462f401b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}