{
  "manageEntity": {
    "action": "Save",
    "entityId": "1997792751",
    "entityType": "Track",
    "nonce": "1792186512220567658",
    "signature": "0xdd62480e110f5a7bfba2f0a6c191c407becce735e583d015d3396bda28d51b56479f84d776cb3e796f309e9dbd082961c7d3db2d1046cf39c76726ef824de1941b",
    "signer": "0x9B241b1a6A99d662AE67D328e091Fc94faF23fdc",
    "userId": "881446128"
  }
}