{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "2046246466",
    "entityType": "Track",
    "nonce": "0x9349d0817ac14bca686c9d938d39cf653ac186dec82a44955641b4141bf6a88c",
    "signature": "0x3c397c2eebf7d8518322abd96f17c2e6da313da9fa5ab421fff42653c0967e9553bf6ea7811815d889847d735e6e275a6108ca9e4b7207cba3bbf866de3867281c",
    "signer": "0x4810fE66B3A42DA4cb34b622aD9A069C293c6b86",
    "userId": "445042807"
  }
}