{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707937",
    "entityType": "User",
    "nonce": "0xbe4fc22294c7e9749731ee48dc03e5c2a4a3bd1c77ad1bb3b605eebba0431894",
    "signature": "0xb257337ae1738639646ed859f82ca8cceddfa8cb71cde8094b84ac4ab1fbf9b578df78152663ae2b5da0363cd67b259b2ccec831d7ce4740e0163cf649bd95841c",
    "signer": "0x0C73Cb0314281db439083e5ae4b1443Ac537a76b",
    "userId": "346579799"
  }
}