{
  "manageEntity": {
    "action": "Save",
    "entityId": "1461228196",
    "entityType": "Track",
    "nonce": "0x66d8063134e047bc893333f8fb8f2a6baf0481f1a791b4f98fee60065c09b0c7",
    "signature": "0x2567387c3f77dfdfbea942c7ea8703026f5c4087812ab5166afbea08894fb02511d08d3005e59b07d90e338b010893277742b29c751b0625c4d42ea3dc0f8f501c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}