{
  "manageEntity": {
    "action": "Save",
    "entityId": "88036",
    "entityType": "Track",
    "nonce": "0x68ba17a1b3435780ee6d7d78ff8f7f07cfceedd0eb273107044355a14682a15b",
    "signature": "0x0ef66f2de42650ed94e793f7041351237c60033ae292b7d3758597c12aa9d51d1980e70b0b0ca1b5f9acb50276c33fb5f79b641121630bf253787e8018425a4f1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}