{
  "manageEntity": {
    "action": "Save",
    "entityId": "97935",
    "entityType": "Track",
    "nonce": "0xed6e8db87302dd7017a5055b66d9734d22e98dbfada17bb55be5286a426f4998",
    "signature": "0xfae2b19d272b8dd59750c3ce4e7adf5d475ffe5e5be4649b982119f83d9f5aaf6a32e6c9f5d4cf81a27fe7f1f6d5f1a6d9a8e8ea6a2f3590ab5982f67fca72861c",
    "signer": "0x51ca47f96544501CdaeE5A905Fe2e2349e80A615",
    "userId": "176537"
  }
}