{
  "manageEntity": {
    "action": "Save",
    "entityId": "126734",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2839dbc1d66ad0915e72f642284dc7ab8a365bcb854c363b90e1ec22efd09391",
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    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}