{
  "manageEntity": {
    "action": "Save",
    "entityId": "1653016874",
    "entityType": "Track",
    "nonce": "0x80ec864533181971c9d8f2d6a97e780ce51e0236d91d946751f8d2d4f7c602d8",
    "signature": "0xd1c61d3f7d7ca510fe8ab4178a14b7669eb4d3a4f8693f5f23d69aab2a78b7800f9137aea63a449ed7ac89231ab81d3c3ac98596b92b9932913d21cf2ca8cebc1b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}