{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1389866309",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xcba448c975a8cfb67e67e13a4a711a1292236aee5ce0399637fcaf1a332e60d5",
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    "signer": "0x4993C3631eecd6e8c1635351A99C2103C7d6Be4b",
    "userId": "906184213"
  }
}