{
  "manageEntity": {
    "action": "Repost",
    "entityId": "456225346",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x7f46d1d5d86c4db879400dc8771c4ef05c1b0e66b50546a3dc86f17d9bb5e3da",
    "signature": "0x8612ec3b4ca1790070090ad48cfe88571c0613afc501753d8a9888f71611cbe755c3de01246615d15dd90eae7d135d3769f5a79d1d856fe06aa4f8a8d558e5811c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}