{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x89145fa1e7908eba1db37b4d47ec252c5f90c6b696fbd9480b73396eb4c5817a",
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    "signer": "0x8f2ebBA3522f46F14A1fCDe5312c7B9EA0E59e15",
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}