{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1894740796",
    "entityType": "Track",
    "nonce": "0x2c8d796e12cb7d4e62d1191853108bc122050fc80f87f92e544114944e9dd11c",
    "signature": "0xc2f4b2bdd42997ec6195a217c8fb43c02c5f935fc6f8fab7fd8289c9de516ce908091953bed5c0511739a3ca9b0acb1c4af3b4904133976eaf42641b040271241b",
    "signer": "0x85B1B971C5fe67452C1B05674372A79112F62292",
    "userId": "668479312"
  }
}