{
"manageEntity": {
"action": "Save",
"entityId": "1593677117",
"entityType": "Track",
"nonce": "0x006400c773e147e2b20047c7bd303f6aa5aafcb53fdc1986df24108849303b91",
"signature": "0x32afa3cacd0ad57da4591fb5826089ed6a7910f51e5ba8f7781135551b73d27b1d369d1e134b7f3c02bedfff58b50d8ddec5864b136a8415ca597b2e2c807fd51c",
"signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
"userId": "35251"
}
}