{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "25543",
    "entityType": "Track",
    "nonce": "0xcfcf2e8eb602e90b86e8335d718587f6e983ff78429dfa9d7dfdb0e0a4be2288",
    "signature": "0x20bd8e185f38e58b8e31d53027f4deab26f49762d02aeabf0ec48113cb2c254159789a663d99b51f98faa6f9e801ee7c6fcdfc523d8bc84b6eb1708af3a883751b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}