{
  "manageEntity": {
    "action": "Update",
    "entityId": "970861425",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x28fa0131ea890e568707c6f909f03a43354b4f998be523f84652839844077efe",
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    "signer": "0x1284B3d7DB8e6cF685B047263df6517e27080a30",
    "userId": "970861425"
  }
}