{
  "manageEntity": {
    "action": "Update",
    "entityId": "137555797",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraqc4gum5zswekndkorg36ezdhulgknnfdyexdosfdi4oyqhcjq4ra\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1894139495},{\"type\":\"playlist\",\"playlist_id\":1219366532},{\"type\":\"playlist\",\"playlist_id\":6955474},{\"type\":\"playlist\",\"playlist_id\":521279793},{\"type\":\"playlist\",\"playlist_id\":1607921935},{\"type\":\"playlist\",\"playlist_id\":906},{\"type\":\"playlist\",\"playlist_id\":13491},{\"type\":\"playlist\",\"playlist_id\":323606930},{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1032522102},{\"type\":\"playlist\",\"playlist_id\":30149538},{\"type\":\"playlist\",\"playlist_id\":1582734845},{\"type\":\"playlist\",\"playlist_id\":986072874}]}}}",
    "nonce": "0x99f52317ee463abd92ee661210be6d1d5baa6945de86ac13e24348dcb5a2a01f",
    "signature": "0x6f0d32a54ae35da0fe92706914db7297b558be15175f294c15643d1afe3ca3d353538ecf232dff3ce7990f1db337f572fd33f62698f684c15beeecff2019c67a1b",
    "signer": "0x756f6214C959aD61DE9f4152885622E81A570700",
    "userId": "137555797"
  }
}