{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1674001840",
    "entityType": "Track",
    "nonce": "0xef3b9ba214e3ee9e64d7218a679968e02843b24a1df05840727aed2c1d71ca35",
    "signature": "0x4bd2edbdfed38c541de577bba712976901b2bfd366e18301bb17ffb216a2016d38a54bc51cff176aca2a201ac5edb8567c8e045078cc2cf1ae5bd338eb9ed6d11c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}