{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "416424765",
    "entityType": "Track",
    "nonce": "0x004d4d36d756565d863066b71b8b41798ec2692f0b59b3d3341ca96470535d88",
    "signature": "0x4c3cd5af1a1bb2d4e4048dff242f5ca314ffbb9c6b1af1986fc460fce27a34ab706ca4e4a8c6177ea3a2ecf1ac710f66629d5b96042bdc47a186ed507404f5f51c",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}