{
  "manageEntity": {
    "action": "Update",
    "entityId": "163718009",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraqwss7euwus7vgggxoornoovz2gm27jaaaodi2ehb22xaerc4ghqa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":70090845},{\"type\":\"playlist\",\"playlist_id\":2145290385},{\"type\":\"playlist\",\"playlist_id\":894078048}]}}}",
    "nonce": "0x7d96ff37e0ecb52ac7f92829f5e2824c6905f8ef351c9f020884b12454c2fad1",
    "signature": "0xd06629b00c557893fa711a4f7755c58bf9304f3728232db407b0747c29cadfa9625953c027d0dfa56fa6235614ebc3e6cb0e4aca0aeacaf17e08675eedfa2cb41c",
    "signer": "0x4B9F6393F7DB4995E29bc601eE2D8037Ec63a9D1",
    "userId": "163718009"
  }
}