{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1406612419",
    "entityType": "Track",
    "nonce": "0x047b67a0e7c5047548558ac2986b124e939881876e5aeef5b0d58b298e7ade45",
    "signature": "0x3424380eb8abb8725ed4891cd9394b58e2d77fbf225e07d2951a1527a88440b94d47e5e9d859b5aaac40e88f756da76955a7fb7ce48dfbb75b1fb856f4bb78011c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}