{
  "manageEntity": {
    "action": "Save",
    "entityId": "2061597269",
    "entityType": "Track",
    "nonce": "0xa8da69971325247afd08e2f5d69d025d811934340275b0a1a43deff700be7417",
    "signature": "0x34519ec3c0bd8c2c344fe8f0475531b91deabdf43ef7a329ccbedf08f280a5013635e963dd555e90669b687c25c07a9b6350015d51726b0b466fe52ab5c0d8251c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}