{
  "manageEntity": {
    "action": "Repost",
    "entityId": "757104",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xfa47dc0be79ecef6da41452d21350dc8c5f29ae01b2ad5ae252ea0ee62bf1a33",
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    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}