{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x21735e904adadf59cd82f91a86861aa2ce6e875bd58d3173367456cb0ef208d5",
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    "signer": "0xbd1A6821fa1f5BB75015362Ccf54823531C8aa46",
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  }
}