{
  "manageEntity": {
    "action": "Update",
    "entityId": "740077098",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb02b123f34ae87097cb1de3ac8f9d427206d23570ad3d437658c154107b42d7b",
    "signature": "0xdbba6c30b6f1fbbc5e6439cabab90362c34c9dacd826488ba86df2364535e7f31c9cc49fa6614102310c32683acf13e53a45cd4a3609dc2ce7b59af9760932221b",
    "signer": "0x1A04334e2cEc7cD99a39f9f1a9CA3faa6e37ecd4",
    "userId": "740077098"
  }
}