{
  "manageEntity": {
    "action": "Save",
    "entityId": "14708255",
    "entityType": "Track",
    "nonce": "0xb4349785437707afd8ab46d3362ce907182c7efe2f9efcf215eeaee7648131ee",
    "signature": "0x3717ac8d57102991e2fc56c81cc10475e98e47a943c93eaea4a1f49588f17ac004df0245f65ca040f35177940ac34e402e55c4d5dde53b4af02979baa7cc323d1c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}