{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "536547498",
    "entityType": "Track",
    "nonce": "0xd482e846228dc4a9937802b2747b471944bcb1c30a2a1ea8737948dd1b1384af",
    "signature": "0x05a328b3ef446b491fd204d68c4a5137c4b4e981ebf87b2c932ddd64e947896e147512b7866bb2fd0657c448c1d7e25fe79734bb1275428e30d76b72332affbb1c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}