{
  "manageEntity": {
    "action": "Repost",
    "entityId": "666461773",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x72120cc6a6777b11699948343a6eff8fb9279608c902d915feac46e62accdb92",
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    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}