{
  "manageEntity": {
    "action": "Update",
    "entityId": "816966804",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe1bbe009f037f48e1e61a7b567194cc41281eef709e29081471265a5c18e52e5",
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    "signer": "0xD637C26d48E3613D0984E7cCEbaAA986bEC27368",
    "userId": "816966804"
  }
}