{
  "manageEntity": {
    "action": "Update",
    "entityId": "1415762",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraexlqo7xjb4x7pkvlsh6yakonmw2c5mhka5giczziwch7e7ew6vga\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1087030952},{\"type\":\"playlist\",\"playlist_id\":198813583},{\"type\":\"playlist\",\"playlist_id\":792753297},{\"type\":\"playlist\",\"playlist_id\":1214894220},{\"type\":\"playlist\",\"playlist_id\":1682099105}]}}}",
    "nonce": "0x7d4d325d180d744fbd107d3135951a5c9709357976c99273be8d02f343221f9a",
    "signature": "0xf867436f4186871e0dfa239463adc3d097cff23b47fe20d0e30951c51afef2fc0dad71cd9d8e0f0c85ce4833b171f6b753f20589caa044a988ebb84e157d07241b",
    "signer": "0x803cAa47D9F525D1180159ddCAC9575061b200B3",
    "userId": "1415762"
  }
}