{
  "manageEntity": {
    "action": "Repost",
    "entityId": "576576",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x5753c86b32c7ba99ff81c954cfeb58e135fe2c90c33e6c377b92298c123a7b21",
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    "signer": "0xD07A680d4F48bA7Cc076c23f40870AccBbad1987",
    "userId": "16411799"
  }
}