{
  "manageEntity": {
    "action": "Save",
    "entityId": "7935",
    "entityType": "Track",
    "nonce": "0xbfa57e8b17b9d574ff8dc1a615224e577eec43a8235d7a166afce593c9923ef0",
    "signature": "0xc4350ec532a9a9ac341b11de17936901267678fdea4e045dbe23cee0fed7affc34bb4dbe0169d8701a624661c4f304878560543ddd33860b3056cfe98add8c261c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}