{
  "manageEntity": {
    "action": "Repost",
    "entityId": "123904",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x5cd83078a5dbf4319be238d8a108363b364af78bf8f1aa14246364a31a82abfd",
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    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}