{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe074a62af945c43e751a6be2671c2ed781daea00707f38f6e6ea35384af8cfc8",
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    "signer": "0xDc9E6086716d1ed5Ccbb7144C00E93f86Cc9Fb26",
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}