{
  "manageEntity": {
    "action": "Repost",
    "entityId": "621918898",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x31d5e4151cb8d84febbf7091bdb7ed5e65d9ad67ecaab114ed7a48ddd472873c",
    "signature": "0xb76fbd10032b09841d00532568e87bd46a5a46db5306c574258d1b926728e4bc71dc42798418f648b49e7c021149e896b8a8d6dec7845833be6eb460c07b22c91b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}