{
  "manageEntity": {
    "action": "Update",
    "entityId": "561806050",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd273b2557415ce2789909eaa7ee677b956275b90b519b74ba6cb0c16da3e3b60",
    "signature": "0xa7f9fd5c1963f06651c6ebc6d32fb7f80cca46b26d3861aadafeb9db81b631bb28a54e8db63d2d3dc90cc52b9459aaeeae8a04305508d0acaca6c1c2713b12091b",
    "signer": "0x56316f6808E81302c00A8137bB213129885a0A8A",
    "userId": "561806050"
  }
}