{
  "manageEntity": {
    "action": "Save",
    "entityId": "106582",
    "entityType": "Track",
    "nonce": "0x0e848b8f03ff489635f0ad000755fca16284d4edf6dc5d422d0a3d3bf451c30a",
    "signature": "0x695b4ab5670e8fb6fd24d6788e1c157ded934529a094b13a4d20bf9733aaba5e4783e83deb5c4a826a173edd571d60f58c70e23d81dfe0e922ed959f414731a71b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}