{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1490120019",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x8b421b3bf840eeecebcd8c40a6ad67fd5a4bd8439a9f3a94328a1a07c1252681",
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    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}