{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "130260315",
    "entityType": "Track",
    "nonce": "0x585a8586151406fbcd12dd03dc66f9e0b295cf0a937ff13d6346acb5ae096ef6",
    "signature": "0x1a019303ab047b2e627652f02dfba13aa745004544d912b0b5fc4e716eafe4ec490358ea6ad2946992e87f1c2ca3f9cddb90eff48e7a567962b1098fb17fe4171b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}