{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "242591261",
    "entityType": "Track",
    "nonce": "0x8ff9d430a554b2852fe29754f8d03ef882e297275054b96a4ce85bb67a397968",
    "signature": "0xbf6fb74ff29946acad40456ed98bb0584cde879eb9b06387989bd71c685716d52355dd995f3c8efe29d57175109f87ed21b59713440e2ac29af95958d16342c51b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}