{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1076294964",
    "entityType": "Track",
    "nonce": "0xa10c805465fdeee2a2ec509092b4c79b290bfd52e2a9c61e9360d2feeff22447",
    "signature": "0x497f9d3423129545489b3677cf402c18e853cbfd3e277c9a628ec6179ae8cce95365164924c3bd2ede8fc1a70e69a80a8d6248fb53d645bf689bfa0150025ca91c",
    "signer": "0xa16E21B675BCaB501e407E716d506F7a99896406",
    "userId": "613617474"
  }
}