{
  "manageEntity": {
    "action": "Save",
    "entityId": "1926266637",
    "entityType": "Track",
    "nonce": "0xce4f7b0fd3efefa7e4ad8c1fdc816dad1813d297684044877e6967f503adc1a9",
    "signature": "0x0522dc98d7d1bd841dfb23f1d3bab9257d6cd6f92c56fb767f8a61de01f3e09f4f65115f6b1b01fa917363ef40b68b1397f30e518fdf3825f8c7437e7dd2bab31c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}