{
  "manageEntity": {
    "action": "Save",
    "entityId": "1611524217",
    "entityType": "Track",
    "nonce": "0x6a45f7821348bb50f4f28fa58275c20270558a5c1b531914afc41039bcf75f39",
    "signature": "0x4f85cb7d4678178c9e91cb9ddb54b5849ac1eb5655ac0be23dc41fa10841cdbd4fdcbd64a1e4cb1b1bb6fdc2b12a315f8484ec95909728d6a16424b852a469ba1c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}