{
  "manageEntity": {
    "action": "Save",
    "entityId": "1116838631",
    "entityType": "Track",
    "nonce": "0xabadcc413c288594f1334de66b5a50727e921bede622de32e18f3fe74d3d6930",
    "signature": "0xcb53c57bfbef84d23fc0b7d46363377651ad47c70ce252bc828f348815ce7b990511635135b00be683e15dfea60f3e4f3a998c5b04bb2e04cf23c2dc60d642271b",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}