{
  "manageEntity": {
    "action": "Save",
    "entityId": "1760372809",
    "entityType": "Track",
    "nonce": "0x8de1a2b376e26a806ae590d2cab41d310df3dd97fe0e8e5dccefe99db7cb9db3",
    "signature": "0x0b0fa517c092d365a5d751aab15694d7c47ae4fccaa0167af02e79f2ac6142474b1c12c8ae0a5c809918e6cde9af5210986d9cf053f1b29781d4734e22f467c21b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}