{
  "manageEntity": {
    "action": "Delete",
    "entityId": "442305683",
    "entityType": "Track",
    "nonce": "0xaf51215f608ffcd85c0a372bae932947eb630770254e147149407da35afc0945",
    "signature": "0x646effd3e488ef9ba268f6119516f84a43474e63771ff36138119ef580dff87b03f2b4fdbe6ce9987cf4bfbf3530f8c9a263adc1cfbf1af5f27d7671dd86638e1b",
    "signer": "0xeecAC0808DE6320b11157473c635f58fFc0668A0",
    "userId": "423422344"
  }
}