{
  "manageEntity": {
    "action": "Repost",
    "entityId": "197878875",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x972f490528bc6d5128f7d60cda8f281de6e35924438eac662ed55d77c20fcb45",
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    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}