{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4a6f6c28aee42314ac3eced38969149d2dba7e7a938554a5ca7dec275f29a75e",
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    "signer": "0xe3921B88207E6D5BF6f86f1245645Cf17A2BE8c4",
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}