{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "924572764",
    "entityType": "Track",
    "nonce": "0xad4c88f4117fc50756088899bb35309c09d4cc8e1f51574170c80ab5dc80b99e",
    "signature": "0x91175930be238639a27708147c648d8e1b6142cc319ca7f7314e9400f67b6b161fdb3f8982203996c2c76703167a1f61c2c4675339c2987703ed499212441c401b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}