{
  "manageEntity": {
    "action": "Update",
    "entityId": "518905423",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierazqrvhoxxbeftkwc6a53n2ri2ygg676sqgubro2zcdzwjwacejfua\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1001485683},{\"type\":\"playlist\",\"playlist_id\":960017887},{\"type\":\"playlist\",\"playlist_id\":1912569641},{\"type\":\"playlist\",\"playlist_id\":589434112}]}}}",
    "nonce": "0x2a31647fca0a5aed23b69e4bc69cbb84a9fadc92c02b21cd881b0c48b400aa1c",
    "signature": "0xba284c6b0339082e50be821fecb523e158c505f5ac149c96c89b8956b3caf2af407bb481522f516246aef03ebdedd22b0caf0d874f01c7ea913004b1fc84abe31b",
    "signer": "0x2bABb5b364Bf1D92eBA736aF25943f446860a0Ef",
    "userId": "518905423"
  }
}