{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8feef2301b069230ec2c73b6518144c89a7183036f645f3194edda7ab6db6578",
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    "signer": "0x2C8378e2B6554919e06e1Be17D97fC2fFc0eDEe9",
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  }
}