{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1504137330",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x0319a8c80572b971db884fa3c703c67618e9c241908432667a5e1782001096e4",
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    "signer": "0x722b43224Dbc7d6931b3C690696EF03933374bff",
    "userId": "772126389"
  }
}