{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1190244704",
    "entityType": "Track",
    "nonce": "0xb0ef8d26ee341c6fbdb1536ac34a2160899ffcae2c3e756c505d2e81414bd1a5",
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    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}