{
  "manageEntity": {
    "action": "Update",
    "entityId": "904019784",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x31aa8871f69c819bee685cf1b4f54521108e9e3f880d87df1c808a08fde9850e",
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    "signer": "0x380358AE7f811C21774F3dEc1F4d5EDC17e6324c",
    "userId": "904019784"
  }
}