{
  "manageEntity": {
    "action": "Save",
    "entityId": "11695",
    "entityType": "Track",
    "nonce": "0x39e583059df596fb9b4f858a4849a9335c0253d2a0324c0b776dfaf9937f7063",
    "signature": "0xdd911f5d32458d4626c2f3b61ed761a84942384a41703f14686874f29c9b41950878aba910cf21d3d751cdea5d1190cba0e72e7b8761792bca13707fb7d3be571c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}