{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1396273491",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x581b7060d687ff719afb2900d465a259782d52169df434e4aac00359efe38e6b",
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    "signer": "0xE4EF593fb5D21ecF6B00BbBB006Eb9725F5F7a5A",
    "userId": "852971520"
  }
}