{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1052928233",
    "entityType": "Track",
    "nonce": "0xa5c4f6070c51b06c770887b8dbc342ab0c5f7ec90fa861c4bc224d9172e32c2f",
    "signature": "0x186e8d6bca7b3aa509f0fbfddc2cdd640e3eaba29c195ce7c83d89e9060c4bf5217657a89360f62921eca5c368577b0130abdc043954de622a50ad1031c500921b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}