{
  "manageEntity": {
    "action": "Update",
    "entityId": "946701878",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x344fc56ae1318521595858c19467a87442fffc325bba4e09c059c81d5bae2fb4",
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    "signer": "0xBb4808d1F012836c9B892286a313C6c6eD6E10e5",
    "userId": "946701878"
  }
}