{
  "manageEntity": {
    "action": "Repost",
    "entityId": "499757519",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xa3b40e556a0825aa8e2ad87ed76e2116c25437fd283fb18ca0516eb935c24fbb",
    "signature": "0x1314d4f0055de3a0f2c2620d4e51047ba5fce63b44fe505e0f02541bbcc5c5766fc8757cc49760ec37a8aea0fc0c4c24e0cc34089c0adb709f72a007af320bcf1c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}