{
  "manageEntity": {
    "action": "Save",
    "entityId": "82051242",
    "entityType": "Track",
    "nonce": "0x4363c575ec49bdf1c6739fd541e03b150f24ecc0653cd75e4689efa4dacd9a19",
    "signature": "0x02d0737530fdd6a71d36b2f7f6e9e30f54827280fcf2731cbcc49316499106fe4d67dda975fe83ccf606e3e76ca0474b584235de85a1edbff3098189a3ca47d01b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}