{
  "manageEntity": {
    "action": "Update",
    "entityId": "648743045",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera2p6374qk2a2qxvurygyfx5svyoefotagdmfyqgc6q66jxvgzfx6q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1862648089},{\"type\":\"playlist\",\"playlist_id\":535391917},{\"type\":\"playlist\",\"playlist_id\":430864977},{\"type\":\"playlist\",\"playlist_id\":1558585299},{\"type\":\"playlist\",\"playlist_id\":468259292}]}}}",
    "nonce": "0x3c680ed43ad89757928869a01aaedaf53de3e21dca6eb9ae92b490a19a0f2069",
    "signature": "0x77f076e690851ca90c7f17a877f1f44bf8696cdaf933627235d4003125b1a1a52dceec47b4ab6c69a403edc98862e421e7fcb942031cdf592b50e48bdbf34edf1c",
    "signer": "0xCaE1ee7dc4DB493ceab857fd89C09fA305C4c5d4",
    "userId": "648743045"
  }
}