{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1507129729",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xd5e00745b44a943a4a3ca586a5bf0c2e678be1004b650df026a9bc51dad525bd",
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    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}