{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "234696373",
    "entityType": "Track",
    "nonce": "0x7e2d4239da1fdb661da761db5d5a7d1a3589736ecfc8144b1ebcfdcc32504b20",
    "signature": "0xe59e90a12bba47f492f21f2808beb5d110965ecd0dd701652ff79c9f466928060cee1ade918ddc51b9ef9e72d965b720ddc84812e56e659131732d8e9e9701e91b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}