{
  "manageEntity": {
    "action": "Repost",
    "entityId": "15977610",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x715e21f6c88d6f38c36dae55026419ab470de39409556fa41ed24594065e6b57",
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    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}