{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1965096082",
    "entityType": "Track",
    "nonce": "0xfbb7eebab01bc035f9bafeee03284d619aad322522e695446a16b6d42c11c7b4",
    "signature": "0x6924966e53f2e2475003566e0e149d80e76d4b6951ffeed8c14391ce1a9386c52631f9670fd7c72049803595dd636144e359cc69a56d32a86a9652bd1e3c3e421c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}