{
  "manageEntity": {
    "action": "Update",
    "entityId": "763235869",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0864453bf7585e7823153ddb3661802899969d7a585c7da3a414f4498cf1ea08",
    "signature": "0x873c6548f7e921bf36d16368ba3c9bb64a83d8fd025f5c37a0efa3678f0487a03dfa128a56c0143ee6c0cec115279f95668bcc1b318e5e11558ce3d1dabe15bd1c",
    "signer": "0x4f86ed9a89B8770232fFc1a8A6510aEf9aBD5dd5",
    "userId": "763235869"
  }
}