{
  "manageEntity": {
    "action": "Repost",
    "entityId": "521978499",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x5de8ad9a0285a4f6cb3b9715d40a4a90bd76c10ca3f1c800ccde7fdebfcffbb4",
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    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}