{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1260625111",
    "entityType": "Track",
    "nonce": "0x5b235872bcf1ab8b22a754a20402f123e11b9fc843dc89d5f76bea94efcb6ba0",
    "signature": "0xba210ade56b0eba7377eafa96100cf44ec4a265eb052facc650a3b968b99e9e51bad619f0670d416b9d11c14e798260965cb0caa902bed3fea2055a75c4178551c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}