{
  "manageEntity": {
    "action": "Update",
    "entityId": "589362852",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8bc218f0f9120d97353bb60a53bfa9406612443b4857112c04d84c4d2b680870",
    "signature": "0x12d95bda0fc88a2f5bec91ab87ef5670626365934c1206b0a78f5c44c5a4a3206fd0a40f6e82b1c9d487027afc4eae57706484696741aeca1ce5ee18ddf67b851c",
    "signer": "0x6F2E759f467c4421504962B1F3fa5C68BD5DaaBD",
    "userId": "589362852"
  }
}