{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0x00d68be1021bb678077de580c58dbf600372e4b84cb372c1d04f18bb77d97c10",
    "signature": "0xab4e075f6ba28aa37a15be189f88089cca96442a37cb7719a09a6e88cef2f96e62dc9e370d9f8af3bd8390df9795ab6cf0d5d6c816a6381f5c9caf27e0fc42181b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}