{
  "manageEntity": {
    "action": "Update",
    "entityId": "477662771",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraorprkfvbfyedapik2u2vuuzbi4vq6eydxob2hiels275wuypkznq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":781560851},{\"type\":\"playlist\",\"playlist_id\":1463865054},{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1117144910},{\"type\":\"playlist\",\"playlist_id\":216173241},{\"type\":\"playlist\",\"playlist_id\":1885431838},{\"type\":\"playlist\",\"playlist_id\":1126320599},{\"type\":\"playlist\",\"playlist_id\":4629},{\"type\":\"playlist\",\"playlist_id\":794139884},{\"type\":\"playlist\",\"playlist_id\":144207},{\"type\":\"playlist\",\"playlist_id\":80718},{\"type\":\"playlist\",\"playlist_id\":23270}]}}}",
    "nonce": "0xddf79b4f1bd2bdcbee4599cf448d83ad6c38d1717f31d3b8114e8b18e6bfcceb",
    "signature": "0x65102d2af988bd25238ed812dc667d26e720c45c7ee80a873fb8117ea02807e3473dfffd112c93dd664a0d85d58b9d4bbf9523e3c682d060298919019d36d6cb1b",
    "signer": "0x6F272bE0cf1929131937536d1E57b571a5bEd994",
    "userId": "477662771"
  }
}