{
  "manageEntity": {
    "action": "Save",
    "entityId": "1134976004",
    "entityType": "Track",
    "nonce": "1793015779867696413",
    "signature": "0x2e6bd425253ecc3b71ea903ef3af7e443fafa9ba236292460c7c3049b9fd952c0d9bc96de07c10f1b8682d34115612112e570d1e92900acd0206e769359d184c1c",
    "signer": "0xE9e5656ce6F7Fe41FDbCA982901407eB55765cD3",
    "userId": "670307808"
  }
}