{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "242223088",
    "entityType": "Track",
    "nonce": "0xd8b82753d59a8407a39864aecebb473288fbd465dd0c72a42878153eb21c1d8c",
    "signature": "0xf711ad58cfff15b50cbef125f3e1eb8116fad6b9a3c97bb6259f7d9472ec0afa3c05a048b4d79df1217e7d4eac9977db51ddf09ad618b561e533b84613283c361b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}