{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa76b5530b55a1fa86ee44d2e44c8f4169ef43333005373c779dc1d5907ae5c17",
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    "signer": "0x13492180B034a916B18f12a00B63e2CADEf7A3cA",
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  }
}