{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5680",
    "entityType": "User",
    "nonce": "0xe1ce6317dffed49c6682b61610a903348d91d48d9542dc39637eb4fb0d29833f",
    "signature": "0xdcf74615e8c5ad6eed40995b03b2907c9e353798fd03b7c6faabfa96d4cd403f6e9a0f04a2f9df02359d3a60f7d16ca151db454a0c75946e6410bb675999acf51b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}