{
  "manageEntity": {
    "action": "Save",
    "entityId": "88126685",
    "entityType": "Track",
    "nonce": "0xd814bf60deb2ccabab73ef57fdb87438417945b31a9e3490a58a67dc9553608b",
    "signature": "0xcaccca22b2f72f619d6f730dc0643c3593552877d1ce95494fdbb26ee4f72b310020fafbd9f40dbf6b0dbe0bb640c04d651d02d95715da695b7044346fd31cef1b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}