{
"manageEntity": {
"action": "Save",
"entityId": "181692425",
"entityType": "Track",
"nonce": "0x62e125752b477f5341abe6acdd0ecd0ce14bf3169cd9457d0f4fb00e8265a9d8",
"signature": "0xca9b08624059587e532586affbf8dc416e16a523cbac92a67e278eeaea7892e464bc9d2b7402686a226fe55f41d894dc653b58ed9c2ef775e833588b90df943c1b",
"signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
"userId": "580720856"
}
}