{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "598473722",
    "entityType": "Track",
    "nonce": "0x6379d694b7b4862959a69dbbb808a95fefa853de89de4fb41ffb1c327af8ab44",
    "signature": "0x32349360233881cda7a7c3227afa3411ec8d9de0c752a8c776c37366f2f6424427f10a4e9c667b93a4bf4db816925c61df84f79b41d86813522fdd4dc201a9fe1c",
    "signer": "0xC9e4fe89311517E71e968f6DE26A6c075A639F41",
    "userId": "964899801"
  }
}