{
  "manageEntity": {
    "action": "Save",
    "entityId": "1431961996",
    "entityType": "Track",
    "nonce": "0x25ba1f1428785d9fbfe406b4d1bf2ee92becf690ac13b7477c7e0719f1bcda99",
    "signature": "0x8d45b47751e572a63ea6c21c6d89ead07a670763c37073639f3432a4f33da99c1067693171204378247b4c972df6cd71d78c3a8a33a8c9cc814ee9074ddc79f71b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}