{
  "manageEntity": {
    "action": "Repost",
    "entityId": "578337292",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x475f35916b26629f5eeb41a9bcdec47d1c9de856d554a7ed4d06427c4008608f",
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    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}