{
  "manageEntity": {
    "action": "Save",
    "entityId": "4629",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x596a0b2e67c68d61333f06a09fd599c5997e63068e6461eadd5f5aefec1aadb8",
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    "signer": "0x6F272bE0cf1929131937536d1E57b571a5bEd994",
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}