{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7a1a322db97419f51bc9c9f6d44e3567cd0cfe29590dec11de649c8b034a2306",
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    "signer": "0x1961E82211635ca2869C701e71e4b7ac0277c713",
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}