{
  "manageEntity": {
    "action": "Update",
    "entityId": "641588405",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x340f00981886421f3517da3f456c1bba6563eca5a335b6930f3fa1d90be4fa01",
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    "signer": "0xcb6560FE550160D5d9069C61404a6ceE14C61f88",
    "userId": "641588405"
  }
}