{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1586753185",
    "entityType": "Track",
    "nonce": "0xada688fbeff313b132a8f69cc2f4708e161fbeea74e73722901b55309588e72d",
    "signature": "0x7f0f4a724c1d7ff88b8cf0c7d76fd936f8d02ad7f455e98127e27aabd6fd1ee741a9688279715af86b2d025aa0dec5f9987b815dce87e7c1d2e7c94956f2c2951c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}