{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "409482611",
    "entityType": "Track",
    "nonce": "0xd546bf1ee337d05703ceff588fb296efde91a4497a68a560258b394eab2223c9",
    "signature": "0x3725102752e28788c6d9caaf8f98a73f5f89a80f160e7f7f66bed208dc5fbcfb716830685e86951ec5526b368c44391bfbb0254f42657d3b7fe56009fff7ca6b1b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}