{
  "manageEntity": {
    "action": "Save",
    "entityId": "1713374251",
    "entityType": "Track",
    "nonce": "0xf550ccce8ff8163809893bd83751b1ed830912e6a2a2d7e70ae3c0520402ec0c",
    "signature": "0xc53b78b413ffa7784c387a68f836c831ea7dfda6c9d4caff7a5fc6551b1f57dd42d571196411238e782d239d7b9c584b26a05d38bab4d98796a3055074e88ae61c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}