{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1900699999",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x4319ed4af6b8c083afc15a34eb06774f3254a9d1a4d29b3b4f61502512cb3629",
    "signature": "0xf85e77d631d6ce2618d1d7f55746b8c8d88eb20ba213cb831c670d976cbfc1c50a5481e0eab1a3f5a31852400861c5bbca822fd7e8acb4149cfbbbe57bc4e28c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}