{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "352830778",
    "entityType": "Track",
    "nonce": "0xa2d3747cfbbbce9884bbfd77de1f1bf87caf1fbb20b9e14a8ad3b8e805c25be6",
    "signature": "0xeb9d9ff39b9fc662dffd8e840780b5d5b3eb6c7a095900a14da73d7ed59987ef1de6b0fd7d66814ea3b7b8e90516b226cc227629a9d7bec08cb70c13ad778c4c1b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}