{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xba1d4e820f026b2d406780346a85d3655504f01897230c52caeb119f3af5901a",
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    "signer": "0x0D6F44CaD964C85a5Bb15D8c0ebAEd9f6CFc051A",
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}