{
  "manageEntity": {
    "action": "Save",
    "entityId": "1824466203",
    "entityType": "Track",
    "nonce": "0x9d4c58b0735c59d450f8d914cc6ffc0a52cd5be21b9d928447144d22d0cf8b08",
    "signature": "0xd799132fe4d05ea44c0316fb0eb782be87cc1487847e5124369f5cd3a55abe511fa67915e59591bcdcdcb5ae46f2012ff9314fe1b62d2dba064e145de8051d421b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}