{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe4efd39a7a23c9879a87fbc588c8b93d3618c9799d26bb1c68ba5711118e9b93",
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    "signer": "0x0C870078DA27a23974490503b46f9dcE8b1f6F6B",
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}