{
"manageEntity": {
"action": "Save",
"entityId": "1986231542",
"entityType": "Track",
"nonce": "0x17d2859aec6020db03bd2e65388d7bd823f98ad814887496299801cda83556c3",
"signature": "0xcffa53c4d13eee1482cd5b63178bd870dd496fb4826233894daff0ed4fbf2dc37ea9fe90e5c6778c17e19a8113a6a8e0eeceed8188a9db96342307225430b4811b",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}