{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xde3a74f120c1b3307080a7714f67f832ac39cb400530a55834b38b528f8a5c17",
    "signature": "0xa0751eea749a75089d681b33b6a279639f11311666e0f5ef6f5b0f98160bbd9527cba70b49b775bf31ca097fa89f92b523dedf7f5240b22f3fee1df6b40d620b1c",
    "signer": "0x5Bc05b706D3864d34607f61EB1cb128EEf4453b8",
    "userId": "673773101"
  }
}