{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1957609503",
    "entityType": "Track",
    "nonce": "0xeb081ef7697af0d90812c538b485698e9c7c254018638e9649983ab384a6543b",
    "signature": "0xf3868054be8faa02f7e2946c760a768b25cd05a04b59dfd1b2094adb47dcb69236c920f9cae36a937a42fc18bbc9b3fc51ee6080403cf026700c51c47cdfa2e91b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}