{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6f1b085361caf8d91511e86143f8babb3923bb5f8a1f4f0f8cae1c62cb5b2349",
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    "signer": "0x6e266C64e0a0663ECa17a3Db2a90921911fEe226",
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}