{
"manageEntity": {
"action": "Save",
"entityId": "776786",
"entityType": "Track",
"nonce": "0x2b2d45a4b6d154e61ef3841b82a35290f20ff9377688ca0f886793752c7058ec",
"signature": "0x68e73378bc2b91106f45f994f00b4f4c3fb4e79663c2e0d272a3603f3813ec86590b26284e9c9db2477b163e31acc72ee5043f117d48178b19eea1c8ea77a6c11b",
"signer": "0xD2F2E85916598FFb221B3d399A164cD39bd24DD7",
"userId": "132339661"
}
}