{
  "manageEntity": {
    "action": "Save",
    "entityId": "1035160412",
    "entityType": "Track",
    "nonce": "0x8fe5398abce066aa760071573e24a1f58a9092bcd042f09517a55664d037f7bd",
    "signature": "0x6d0434264c448af64cd0f27e6cb18b469e0adf53ce5e51f2421ce373ef14a07f66ab9ae65862586a0839aadbe29b0c8780a9c1c3445b9944c3d1438b7cebff901b",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}