{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1900331319",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x39f245cb0bf06c1f3e51c4ce39c6f7ce6f7743caf108b7dc89bce8d1b0e5061a",
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    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
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}