{
  "manageEntity": {
    "action": "Update",
    "entityId": "799685125",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa4c82819cf3d971a38bf8e004dd08c2efa0ea61341074d582aae2ff79b092978",
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    "signer": "0x1107a43818b75C4d3B55d3646BB485c86bd99f2d",
    "userId": "799685125"
  }
}