{
  "manageEntity": {
    "action": "Repost",
    "entityId": "499334",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x92f5f20ebf5130479210c5c7cea70cc139c1fe35d239f40f67c341424c2b2759",
    "signature": "0xbff8c65a816a5ea7146d94cf902f9e9c2602d155df632c635942fb12fe8a04822f94cf421a73fc8b50048a0eda58cf8d7faf77197c303affd1093faccf9a16141b",
    "signer": "0x4dafC3e774A1033C5604372f17ccBDcE545f478D",
    "userId": "889450527"
  }
}