{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4f26e4b1447e2967cabe124686579d8c3a0c7efc16b9bbfc46d552518a2674ed",
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    "signer": "0x85b05A5e7cF0feBb14BB5feC1E645dB5151F8e8b",
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}