{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "986843638",
    "entityType": "Track",
    "nonce": "0x848a5e3fe462972f255cb1580115176ac1fb2a5c9538799412ab1259fb215764",
    "signature": "0x5602ddeacdb5fe47b6a055fc24436ad1443955bfa59758978d8b720f192b10a42039a898cc4bd309a1037e7785c6b188855d21a097729a1aa7d777e556070c641c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}