{
"manageEntity": {
"action": "Save",
"entityId": "1268923150",
"entityType": "Track",
"nonce": "0xb05cc8cad5debe2eac29e8e3b389c6264257d625da9dbb286503a2c229b4801b",
"signature": "0x2a4491b89e02b634f71f48c381f685d83dcca25099fc162864a8f1e1ac2df4912a87ee19b8fdbb8f4f5280763a4c220069a51a82021c29634effdfff7d1636191b",
"signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
"userId": "683609933"
}
}