{
  "manageEntity": {
    "action": "Save",
    "entityId": "36068",
    "entityType": "Track",
    "nonce": "0x4209907663f6744a687300a20a426c8c97566edd6465e70eed4857f134543366",
    "signature": "0xfffc15650723fe5e1e3446ed5449a4a93fdcebcb4fd8c6649f7b4b6c0470b2325cde6600000b2e1d04d4adca596d3d22e9d23e9689de4314531dbe77e0cd3e041b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}