{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1616212420",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xb00298081efde49169acfd897a169e187476cdec3192cd05a1d1a1575891bbae",
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    "signer": "0xC1896EAF7ae2431A08647A163291b5a8A0cd2a6C",
    "userId": "185209372"
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}