{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x93f33ac2a443a5d562718aab68420beefc3cac3c87ac37dda9a78e5859dea5fe",
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    "signer": "0xEAb9Fff0c9a60c9Cf2aF56385027ca8B72877200",
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}