{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "88891",
    "entityType": "Track",
    "nonce": "0xa9a3ceeba7d9a927289b63c660554eeecf5e329595766cc2e0acc3b9270c4724",
    "signature": "0x088cb44ae06e0770840bb36c28bd6dbd8f9a670f69b430181127526aac21d29f79854bdda9e650709e55d748a835771cb52e60da1d1af793459237752f20bfd41b",
    "signer": "0xd2AD0Ad67ab87495AA7D0c2dBb6856b9f1cEb365",
    "userId": "91619"
  }
}