{
  "manageEntity": {
    "action": "Save",
    "entityId": "36727",
    "entityType": "Track",
    "nonce": "0xeeb1421160aa2458b7df0e4f2348687e0d09de125b386dc8a4f41369b789a6bc",
    "signature": "0xf09fcd4f76c181eeaef8fe6e9e1d5f2717390ee718817771ec2c46806f5a167660a356097a3d4647f955a9d2d3367e121712314ce2e14f0f4bd968135e5d16c91b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}