{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1621469515",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xd53033a8fef33a03355f35478c8d2676dfcaae34f3f83049360d4bf847ea57a0",
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    "signer": "0x4dafC3e774A1033C5604372f17ccBDcE545f478D",
    "userId": "889450527"
  }
}