{
  "manageEntity": {
    "action": "Repost",
    "entityId": "757177766",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x5f9bbc089fc2c4c369d677e15451da6c8333644fdb9da4adf04bb428d5a866f0",
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    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}