{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x494125c89feda0974220fa93a98076d10c1acec28908dc61a926a3f6f9c8ea32",
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    "signer": "0xb6ED0912F59E619BE2B92caA823bf630d836ECb7",
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}