{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xb4510fb27f7c1d3135dd81035a01bc0cc3d046724aa7684c4eecb0fbd9f2d85f",
    "signature": "0x722a6aaa0a804e87302c6caf952fa1c6f9a71aa8f0c886a4e9fb31370aadd2f333465c6887e979e7b89a4671ef9ee477d52e8f23b32dd767fbe3c47be4004adf1b",
    "signer": "0xC4e201BEaDD3933E76e562c99f9F367Ced3f68d7",
    "userId": "533673360"
  }
}