{
  "manageEntity": {
    "action": "Save",
    "entityId": "2023031476",
    "entityType": "Track",
    "nonce": "0x967f7916d89e37d9c27bc987c4370fd7bd743323cb170e328e7b9f09a029c366",
    "signature": "0x446ce780dd6df7af40d9b279222695f68f0f22dcaf12f46e1bc633a8282fc97f3a383693d16576312699e8db0f2374c0721ce9a82cfbbca5600afe6a4a01d6b71b",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}