{
  "manageEntity": {
    "action": "Save",
    "entityId": "1732046245",
    "entityType": "Track",
    "nonce": "0xe44bb89a03a7722c739e64cc066fbcd27c3a6edcb35f08afe8de88440dc98c4a",
    "signature": "0xc3ad269affa6199151f7c119da14dd171392729fdf88b8004f7dab355d1b2aa616e663769ded8c21f702b46a9b83aa333f5f0e71b523e23391cb47ac2a897a821c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}