{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "759473",
    "entityType": "User",
    "nonce": "0x4df431c72c06a9daa9d9958ef67e92bc1ed8cdaea39aa269abab7c8ae4aac6f1",
    "signature": "0x99cc31d95d7987500227c1be8404cfde71a05f14432761e469cef20d9c8e4df54b397471f0e227c6d161d4f68bf39e4584f8b49252763b5f99e931208f187ae61b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}