{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd017529ee130a97ad5888d197acbe36eac81e22ce7b3bf19a158efe28114ff18",
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    "signer": "0x426Be6Ee4cbb9639A59d4f2d8fc65EEF2F539478",
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}