{
  "manageEntity": {
    "action": "Update",
    "entityId": "348224502",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3cc6409e05220ea86d945b5a4c47c7aae9dbfa742580fcb84d018377963f3b1d",
    "signature": "0xbe3585b5a37935a3df4effab5b91f56aea005a9fb1870bff088cc4287dfdd0bb4a06fc931a6bfb5dfe2a6de7e6a069a8017653c4fd5807615f4d853605e52a791c",
    "signer": "0xdeafB8E9B9465ed291AB77a5f64d485CDbc8c6Ae",
    "userId": "348224502"
  }
}