{
  "manageEntity": {
    "action": "Update",
    "entityId": "511721106",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5hck5ev56zqzc7wg2vu6vgtzpljsjbddknd22chfbiuj5w6zm5qq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":539860050},{\"type\":\"playlist\",\"playlist_id\":71525442},{\"type\":\"playlist\",\"playlist_id\":262668113}]}}}",
    "nonce": "0xf0d705883b8805a4d46a7ecfe2f3e9630ecdb6485477899d7f0ece47da492e23",
    "signature": "0x0cf4b24b1703cd56dd68a3005261e8096f79ed225218b745cffde671bb1a34f766cff5fc327a9adcc115b09dc2c9b901d801431c193cf7647821b0add4daf5421c",
    "signer": "0x47dbED9A6aEEcAa660D5be033a565bd140969326",
    "userId": "511721106"
  }
}