{
  "manageEntity": {
    "action": "Update",
    "entityId": "473283799",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x68c4bb846f924dabf503f54acd429a16db3e832a1cc5b827746ee280e7a2c608",
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    "signer": "0x6E1E443008E46412225A18E5CE617CaE26954800",
    "userId": "473283799"
  }
}