{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xcd679b5a457ebe584350229875eaabc6ac33c010ada56fde4d9ae6f3cd161e92",
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    "signer": "0x3461908fDAcb8a77916f938c6c7450798046b4bA",
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}