{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "994179032",
    "entityType": "User",
    "nonce": "0xc3cfedf3c41a48d947b51f123d4891662a2f1296915db90d92e3c1af862dee85",
    "signature": "0x15db961a313c97071eb808dc79ff8a5f9582ffed0df24aa352eac3e9a68675ad12af6448eda5153eb58194c084d45e58d532166ef19ec7879fbdf3576f7203cc1c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}