{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1674001840",
    "entityType": "Track",
    "nonce": "0x00fc726aab728499362e201b6dbedb80d19a0a47dfd57d17991bad72531e88ca",
    "signature": "0x0cd0713b761201ce38812fc50e0e0ea63388d2a83f39e376d979755f5905265e78d661862e4bf13450d3fe3075932814c506393a81b3874ab13c7d559fc64d8a1b",
    "signer": "0xaeD84e1089B8e1DfFe8B86413AD22AE82fdEfC5B",
    "userId": "862616804"
  }
}