{
  "manageEntity": {
    "action": "Update",
    "entityId": "197748990",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraosdyjbz2krjpfectibn2vykxzb4muh4tbd2yx3a4yasskne4cfzq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2046628087},{\"type\":\"playlist\",\"playlist_id\":222199878},{\"type\":\"playlist\",\"playlist_id\":1810795732},{\"type\":\"playlist\",\"playlist_id\":223464512}]}}}",
    "nonce": "0xfa148a5c542adf0c2ee5059eedca8ec5535f37f3ddd92555f016e0eb9ed1b47f",
    "signature": "0xf99af4ded31e7cf6272861ec15793a924d090d466532bda6c8596697156a00232e6681f4db35ba94d16f645789d084b1b304a01a3306ccd61a6d4a79ca01d0851b",
    "signer": "0x58934aF590033f64aE748798BA7629C8D43EBad9",
    "userId": "197748990"
  }
}