{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1043754816",
    "entityType": "Track",
    "nonce": "0xe15f35921e14f653f3a971ee7993fd766275b1f656a3e7c1f23e08e4ad2119c1",
    "signature": "0x4a16ad5b8aa4e74c7f301b5d88655b242d2fe5d9b314701bf48abb5b5b4755ce13f278d4a9384751b043233192f9876fb89d2930b18295bfff6a75ed4e762ad41c",
    "signer": "0x74D1fD74Bd58308BB5a6dFC0C8DEAEC4327E80B3",
    "userId": "7525656"
  }
}