{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "2099758655",
    "entityType": "Track",
    "nonce": "0x5ac4ef0a24ff601afa742094ad6b25269d0bac03251c27e30f5149406eea20b9",
    "signature": "0xa93e8b5dcbebb2d84eafba8d46f6703620b7e4e9e85c488835fed33e1f92f4da68997338d97b39622fc9e692522f14dd2477e4ce82de50bb4602e4681753dcec1b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}