{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "13614146",
    "entityType": "Track",
    "nonce": "0xf2aef3a3e2c968b9d807c6687f3eb717ec6b8174f3ca3e73f5fd05531f7d7278",
    "signature": "0xe9ba784dda1036e50170b5474f8db628e7ec93aa2cb14f38bfabcd4f4b308b3f5cbcceb20c2e26242cc940f1ea925f2e3679ff979f7075e6431bb0ba644037721b",
    "signer": "0xEDAf2D5D3b215D8E1c7a1bc0C7872fa76Ed1481f",
    "userId": "280209441"
  }
}