{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1897466029",
    "entityType": "Track",
    "nonce": "0xe75d9af6d3caf2e09fc1239b045de57c68c4d5cef5be201020fb8e0cf9c1643e",
    "signature": "0xd98c0acadb6ba44e117e2b92c4f7cd8a7ac374a6333cb2e8abd8ef2c52e51cfc08d908f0fc319318d4001f69985d94e3988d9c0c5058dd5ef9fb3e7c8579c63c1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}