{
  "manageEntity": {
    "action": "Save",
    "entityId": "24419040",
    "entityType": "Track",
    "nonce": "0x285521d27578fd3dd6ba175fbcd73b7cde17296650c7cdf12b7f8556953d154e",
    "signature": "0x196fc3153612867097d8b10f3908189148c99387c8a4655a1a0216a4106673c0308ffa4de5507555e7d766cade745830ba8e3a3d79b7d8152c6d1181207435911c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}