{
  "manageEntity": {
    "action": "Repost",
    "entityId": "450449",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xe009f48ac0843c19650add2f0594619672f4f1d9029143358439c633f41b6c01",
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    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}