{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "785593910",
    "entityType": "Track",
    "nonce": "0xdd5b10034874c9b093c2be65bdafa418ae7d9f03e4a3f37bc81cfebcdbb9aff1",
    "signature": "0xae4a1c8a31a3b270ac3e340a74df2149b2c598d83952a8b436c29120b74efcd37555b77a27694a0884a7fa92f31cfed3f25ee227f185a55d249c84887ec16ce31b",
    "signer": "0x11F37c73bc250F79db38fa78e76e4aFA34e39B30",
    "userId": "295957"
  }
}