{
  "manageEntity": {
    "action": "Repost",
    "entityId": "291021442",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x15559a3088ea7f3f3ad95bffe4443b5312e709e59af65e3704fd4470792f98ba",
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    "signer": "0x3324C23609BC25902C39CFa38CF40581c7Bc7F87",
    "userId": "229134011"
  }
}