{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104812",
    "entityType": "User",
    "nonce": "0x6f48f4930c85e05982605a067240aebc24c509195d28a69fe8835c45400e334c",
    "signature": "0x645006aa292475c61ba36b513983d41c03ba4a8eb8366b89a8392fcc194d0cf705f9b95add15546a4468c5fc764833a4f5c6c78579ae352e84864d5910ce61a21c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}