{
  "manageEntity": {
    "action": "Repost",
    "entityId": "343458",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x2bff98b359ffd7f937d0e8608d5d3eb8ea48c2fd9bf6c5bf87c3078fa659635c",
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    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}