{
"manageEntity": {
"action": "Save",
"entityId": "1861784985",
"entityType": "Track",
"nonce": "1792357536905029392",
"signature": "0xdb86c4e70c6bf05b80a053387d4c4f7a8d6185f4d3e8c905b7dae910008bf6a71164d7f8b1f518d2996ab6f37938b160add50d42839becb53b0485bcc5a57fc01b",
"signer": "0x1007e09532BE90331E035838A9E2E0700bB9741a",
"userId": "329513359"
}
}