{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "262805142",
    "entityType": "Track",
    "nonce": "0x0f22eb30fcfdb3f711a44c41e46ce1ba8f0ba67a267b335d92bf87aa6ab17948",
    "signature": "0xfe51df00290f892931ecc5ff3bd7c43a162194bdb49d3f5ae8691fb61cb661d47d542dc0d56c2e9af68fb034bb4020d41cf6c6b0777d85080864bdd805222e8a1c",
    "signer": "0x0D5eCb6A93B2b5484543C46348ee44F9AB3c26d0",
    "userId": "408610522"
  }
}