{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x58280e1f2fe3419ec28b31c689aeeb7e1ed5c806129297a83844a666d0bfe79c",
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    "signer": "0x76F4AF7e1f8e55b9a4464716c28F2CD1B52C5FD6",
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}