{
  "manageEntity": {
    "action": "Repost",
    "entityId": "663923003",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x6f71146fbeee6165142c2ebd1b050167ada00a331b77496ebf1bf39a261710ce",
    "signature": "0x6a9b2780d3524948b6c7d65006699173b521c1050fd6ef9d9af8f62230b31249519625cf2419ff952cfaac324ed362e0e49e3f8f02851000cdaaf6b2a406dcc81c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}