{
  "manageEntity": {
    "action": "Update",
    "entityId": "477662771",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierafdwq5cuav6lbu6vkbrmzgla3bgqn4vvgdxld2n4qx2ilueagp2na\",\"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\":13129},{\"type\":\"playlist\",\"playlist_id\":14868}]}}}",
    "nonce": "0x90bf7509bd3c643203401f8ad1605bbe0ac73767e580cdb50b6be8e1a3d498d2",
    "signature": "0x54e48b43441da40df8d230ab9ec7b67b939d459582693dbeeab3bee6aca226fb3cdbe01ade791a0a47c8639d52754639b18894273913d4b89a9f4245bd5986431b",
    "signer": "0x6F272bE0cf1929131937536d1E57b571a5bEd994",
    "userId": "477662771"
  }
}