{
  "manageEntity": {
    "action": "Repost",
    "entityId": "757889493",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x391987048ce1390bd7dd3c0bebe292ad331c2ae2c22b2eef5173adc08842c236",
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    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}