{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1132029202",
    "entityType": "Track",
    "nonce": "0x3da9151e690839211abc124f044cb9bfab27194fe2f461a47bcfcc99a8a9f703",
    "signature": "0xf2258b2ca59a6f865eca2ed3258ff545c1c7882f58da8fd259be184f3025087158cd99fb9176739a60b76454155e7adb8d5fce199c392691f813196a16ea1e8d1c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}