{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "121613220",
    "entityType": "Track",
    "nonce": "0x2b06bfd1414e6b2b6bbfc2054a326461e59e71e48e1259ee1bce17e2464cf496",
    "signature": "0x2a56ec40314e4baebb8fb53383eff75d730d1efc424956ccf239e5a27f3745995e3631a7230f384ba3a6385b21b8e4b40887a068958dfff119046230e822f6ab1b",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}