{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1655620621",
    "entityType": "Track",
    "nonce": "0xe11afaedde3402fe7c260ccaa4bef8b04d435c1d0920ee5351a253f8c922bd2a",
    "signature": "0x78add80a0921e624bc206c97a48d176a2aaa82c4df79defc9e7f6343c9cd49906f828e090011c7c19114ac8f0eb0406ef2156724501c47c968915309779f6eab1b",
    "signer": "0x0b901AE3Eb7b439095858D82Ff194CfeD0Fd3396",
    "userId": "167557"
  }
}