{
  "manageEntity": {
    "action": "Repost",
    "entityId": "750453",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x5b5e308b97c3addb2f420aa47e965ee6d6248ce38f8ffdabf5a09cdc92f50dd2",
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    "signer": "0xbb3E94A6Ca25f3CAF1B8487768C074bE200e6381",
    "userId": "277460613"
  }
}