{
  "manageEntity": {
    "action": "Repost",
    "entityId": "703698991",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xe46320426b691a89c803ed6cce1297fe8c6734af382769e2aadf92a45b864c5a",
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    "signer": "0x8FF85C5AA450a88f13FbD5170e24E2a3eFF32518",
    "userId": "311829956"
  }
}