{
  "manageEntity": {
    "action": "Save",
    "entityId": "957825712",
    "entityType": "Track",
    "nonce": "0xa719414365b08031a18757d78e7fe67496f6899bc2212e43186a8691dbbeca90",
    "signature": "0x1f4a32840ca72093b099dc9305e068794e2b5ee2cd43541a6475b682f99489d83ab3002c5dcfdc37532a1806a4f53cc453b8ee882d1eca8270badf4b36fe3cb61c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}