{
  "manageEntity": {
    "action": "Save",
    "entityId": "36725",
    "entityType": "Track",
    "nonce": "0x93d0f8e1f4618181ebec217c3e79e9af7bbbd13dfc845cfd002e78f59e1c382d",
    "signature": "0xa359b60d8f3fe506176d0d88f27747ce7a87794dea8ee034cfb17f6a82b7541d29c979d092da080d984b54c2346f2e7bfc0cadde1d35716194fca76e2c2612ef1c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}