{
  "manageEntity": {
    "action": "Save",
    "entityId": "1151168656",
    "entityType": "Track",
    "nonce": "0x0818ab40598a54a43d42caf6d411581269455f19f16f44090a333dcf690efa86",
    "signature": "0x14cc67bb22d35807a85b6c91783011bd8a36b87a3ad0ee80da42eaeb02832bf90d573cb1b4ff381b3bbaafe6ef6b04a8834655f5609ba2506a2dee425dde671e1b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}