{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1012617766",
    "entityType": "Track",
    "nonce": "0x65ce5703d5ba7a6bc154933ce20dae20b83d4826dabb13581917c7162fd33ec5",
    "signature": "0xac9569617253c09db4bbfcc968fd88bcd60f2c17e1f578d177c9a9a519464b7d0e6784d3e589827849b62254dd71930cfbd8a7daab8b11bb52be0ff780ddf5ff1b",
    "signer": "0x8Ec2ca47E903F1A9B4BC8321e0E33DcdaFFFDD15",
    "userId": "503929090"
  }
}