{
  "manageEntity": {
    "action": "Save",
    "entityId": "58945737",
    "entityType": "Track",
    "nonce": "0x1eaa9114efafe0d47b6d55810a1a724daba642dffcc97f7942a4f7c16a63dd84",
    "signature": "0x0586d79de5c88b9d35f4cfffed7028d962a1725fbaab1ab2004bd2a63aad89ed1fc9b0b7a5e836381df0d6e81a6c04d2c2c4a3f8e6066ee25681d639d9d8df971b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}