{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108203",
    "entityType": "User",
    "nonce": "0xbd76244fc77a09dce6d543e3db3aa44005be29bec03598a47a4cc685982102ca",
    "signature": "0x72a8daf470c6b79430b42e9631d1f63218cb6dc908864f6cdbb533ec85180ac224ad6d8c54e04259d5209034a30694279693403843cd36799d4903f7ad2a1e561c",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}