{
  "manageEntity": {
    "action": "Save",
    "entityId": "854762",
    "entityType": "Track",
    "nonce": "0xb099ca9c52e87050cf8c55a80b740298d83fe4722b336d6d27bdb32dd9b213c7",
    "signature": "0x6ab1ce28302d5499bcab22eb8d96346aed6b8fafdedcc307fc23eac2df542cdc1ada8f6218287738c1d63918aebd774001f5f256ddfb7bf12f996e0cdb919ae31b",
    "signer": "0xa8E11aa224d2579f5cbdb912866bCE84Eb10f9dD",
    "userId": "951616224"
  }
}