{
"manageEntity": {
"action": "Save",
"entityId": "1780691444",
"entityType": "Track",
"nonce": "0xc11889646db59c0d0034fa657a9c5ddecb37065a0edb0ee79cbbfe19cc3ec4ac",
"signature": "0xa87ec7a61590e995cb8d30b3bd5ae85717d2d6a13b216d53e4e804bb1f9a879520ed86f59975003b1b954fbd5dde4406655f76c3231925867095b7a4b3ce5aaf1b",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}