{
  "manageEntity": {
    "action": "Save",
    "entityId": "1790084423",
    "entityType": "Track",
    "nonce": "0x3d079304dd61e542c2425c186dc724874c779535847043641d000d2a7f5f554b",
    "signature": "0x0840719f751b572d4d00db7a530ffe58114ddde608174199a2f150404b03a8fd082a3b5d55813af031ce7b34ba5018d5a1fd71a4a4981598f030d8cd7290e5281c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}