{
  "manageEntity": {
    "action": "Update",
    "entityId": "451488999",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbe1d48f55a46f04715c2ca32bf28940de65440ec354b047e9d787aa996a11ca1",
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    "signer": "0x33769231a1466b9f67935370047955160954f3B3",
    "userId": "451488999"
  }
}