{
  "manageEntity": {
    "action": "Save",
    "entityId": "1036470589",
    "entityType": "Track",
    "nonce": "0xff46ddb0fec03952b84c9d6d35e31fded531dbedd4a7d5bd87dab159002c98b1",
    "signature": "0x2d15421d53fc31a3612816edcb73232e19d2bf4d32d69648ded28f5ea153f5c22c62f97d23eb0ffa08a9e8a6fe605d3220b30554dff5c10983277fff62b264841b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}