{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1373845699",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x4b24758d30997ef6be4d322ce044bea8b43106003c8e8773ca6217cb1c4c3541",
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    "signer": "0xb51B50C9b7d88C66d31539161F4BA9Dd72a17dF5",
    "userId": "465531556"
  }
}