{
  "manageEntity": {
    "action": "Update",
    "entityId": "828365327",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa03d86e1a70e87232e205ea782f821bae219eb4834c2d824b8bded7a1ed4e30f",
    "signature": "0xf886f9a255a576029d4b6ed965fcfe8cd9e01968eec755b8a9760c6f85e947ca25cd9f486ee69798935194a9ed384b2c3e202844b29c79ec793520672655d15b1b",
    "signer": "0x0883B8C0Ba9f84Cc8839315CF74dB181c8A06612",
    "userId": "828365327"
  }
}