{
  "manageEntity": {
    "action": "Update",
    "entityId": "327590204",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8f1ba1a45baffeac1ce2f031e220f79fa01b512d88dfa49da57371ab1211711d",
    "signature": "0xf6d3db73a2ee66eb056ab58ae5d84dec6478354634964fb5df51fb2e3e95fafd46f0b4c6f4b354d0919f4dba4ff8e0e8ef0ba75caaff58a34f72139829154eb41b",
    "signer": "0xfeed2e3af8F548DD8eAF233303cb6AB4Ae9D2c20",
    "userId": "327590204"
  }
}