{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1527185081",
    "entityType": "Track",
    "nonce": "0x60989b19e6c39edf1011b5fd144ed717b2dd12309b4e80594c7d40219edc25dd",
    "signature": "0xc507cfd74f35afe032e09669263422070b409da740093937ab61538d9c32ebdf420eadeeb980300bb568e895b9ddb86f8dd3eaa477cb673bfe88847bd17610591c",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}