{
  "manageEntity": {
    "action": "Repost",
    "entityId": "39199456",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xe83ec293d7664e4008b4e0978cad040fa4389a8f163c84a7934673d52580e177",
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    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}