{
"manageEntity": {
"action": "Save",
"entityId": "799085298",
"entityType": "Track",
"nonce": "1793356738334512536",
"signature": "0x2b3f45284560950ce3be0daa22cfe6ebc478edf2dc3bb4d7d1aeae264a4e760c55920194c1947fdc6b403741e7a00daea12ec07e8997351d0be80fc194c71f431b",
"signer": "0xd30fAF377491796757Ef4C1B0ccA8a407920e663",
"userId": "451691735"
}
}