{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "159169162",
    "entityType": "Track",
    "nonce": "0x4ad279ac1989cead8a10f442508038b1fe7563e23e96794d0d0e6ba1c41c5c20",
    "signature": "0xd121b7931fda9ca6e021d13789a9c9d1f8f84475cf1d3617d5330913e74123752c2abc05b20c5f1104049dacd27c9be2aa14e8d877605238c373586c075edd6d1c",
    "signer": "0xBBBE9eFc177a4E708d317195Fa81aA6E8E2F7E92",
    "userId": "557135181"
  }
}