{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4c0735b72b4d6c68951f6717bb40d06cb9767242fa86b351cb46b125b8330275",
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    "signer": "0x0326cEeBC8D8084bb9Bb3d2cB26e0F1D79c03903",
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  }
}