{
  "manageEntity": {
    "action": "Save",
    "entityId": "950139397",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd7da13206c8cf3821cb123417116f3c768405305902450a92a7fa5ee2dfeea24",
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    "signer": "0xb7A2Af0cBD7855Bb6a84B86455d3eABB0883A943",
    "userId": "140102834"
  }
}