{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1260958789",
    "entityType": "Track",
    "nonce": "0x15136ffa7c0ed3683ffe1a5ee61e51ddb2712f3dce5bb6ada65f1156f37ed0ec",
    "signature": "0xf7a5947016dd46d06a2265bc0f6d297848f6890161ecd090a8b83739adcbae142a2765acd519a0cb67c95a697c52d8a11d78711caf1a04c275424d3fc7a7dbab1b",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}