{
  "manageEntity": {
    "action": "Update",
    "entityId": "864530018",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierahvfsyjnijn6jnnwy3zyjdedjdwlvpmob5ykkmls3ecolhkwjytia\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1742093109}]}}}",
    "nonce": "0xefeaf89af435c011e96690eb4ce3e9582aa40d2a2e7f758c68f620252239b767",
    "signature": "0xb81991ecf5fe30c7197ff39b0152d9799f8f8fdf063d29e3f882e74a697889a9345db8e82a5e48d53d24f5d4775f4c1f0dd628bcf10a00a194a5e8d9d0a88d1f1c",
    "signer": "0xeDE6cf2daA6681F46907C46194f3142e0C9ba4c0",
    "userId": "864530018"
  }
}