{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "48084",
    "entityType": "Track",
    "nonce": "0xdddb5a1595144a0f65ebd4e1d3ede53aa6347bac92093222f04591532067df50",
    "signature": "0xd81a4e611453c4039d9d455e6dc33a60733b1a23d10ed2e498a14af9851304143b4ad2f5aa255432b280babb9f3a3c7bc69ac55a211338fb8d188d8205276a1b1c",
    "signer": "0x672e9a41a6b972AB2eD6BEB1D4a6e4F09dA4C9F5",
    "userId": "302680854"
  }
}