{
  "manageEntity": {
    "action": "Save",
    "entityId": "1167142959",
    "entityType": "Track",
    "nonce": "0xa45fba27ed7d378a440de3105a261bc71677b5dfd596ae555e81276477429f27",
    "signature": "0x187f20929569c05170e184e7b6466a87224000ac950dd3d50f060f7afa179e7d168b44fdb1b055bb1ca7bf0ca0ee78b3ec28f2e93a60ad09f68d770a0c9d547c1c",
    "signer": "0x2F7db4C1AE3922aD0f32CEdED1870278dd17b64b",
    "userId": "467213409"
  }
}