{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1871173488",
    "entityType": "Track",
    "nonce": "0x3792b4ac50a20d424ed63d07da8a3fa252235d2a55865ce29b3591efcf83f889",
    "signature": "0x418127981b4ff6b84c7e716e75bd3e632da6d2e8f6ff071ab2c957d1534b81745008ae939ee30ca38749cbb339acad180fc8ede62b65dba290df484d35b872c81c",
    "signer": "0xD71D6a61b797d5436c8d291306fd7DbCe6257Cc2",
    "userId": "117522"
  }
}