{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1434104333",
    "entityType": "Track",
    "nonce": "0xd39ddb9001a218f30f3f192dcbcf0238af0155beb40a88a5022bd83e8bad023f",
    "signature": "0xcbc05765b356613c979b1b9c969be010179c687c08e0bf1aa207133716757ed753a7f6c2d5c8fa8256d8488f6362b34c485792223aff659d963ee791ef5517561c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}