{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "755919613",
    "entityType": "Track",
    "nonce": "0xaae3e188347e3398259bed2acbdb21db89c2974897d79102869cb2476d697bb8",
    "signature": "0xed977c582ee606409eff89a2f46a0767681b30d988df3ed0addecd4010d1286715de9933094893c287075796aa98e44169f06d14e52f82e509d531c7ff7edfaf1c",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}