{
  "manageEntity": {
    "action": "Update",
    "entityId": "917553359",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9aa58b66ec42824ff0ea2a2198f5ba4c2f338807da9e53e9b4ac535200b6c2a2",
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    "signer": "0x149628D5c5d15Fcee08a3A19939ec5D6022f07bD",
    "userId": "917553359"
  }
}