{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8cac0d0b73299547da9fc8123e07dab25a8b41a013dfaa26b5b596518d8a0d6c",
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    "signer": "0xea69253B2C33054a4FA2D56471c9ddB8E0584B10",
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}