{
  "manageEntity": {
    "action": "Save",
    "entityId": "427868843",
    "entityType": "Track",
    "nonce": "0xdbb59ceab27ba1ae21b2834042d75e602cbf57963c59ec384fac4ee6bf9088fc",
    "signature": "0x0cc79849fdd83ef512634621ba8d8a98989a97da30c6b01d7460eb88af9b7e5e30d37e78c128c405c8f6015721ff7fbeb44e47bd4509e27bdd48ccb108db01f21b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}