{
  "manageEntity": {
    "action": "Save",
    "entityId": "224434422",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1f7acbbb1d78c3343fad56ad3037eb031219c04775eeb3bcfcc5819814d3838a",
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    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
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}