{
  "manageEntity": {
    "action": "Update",
    "entityId": "469579468",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieras5gz4ogxhanc7tant7unmlwn5kab3gbihpcdgluvlfzlb34n2xga\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":149324705}]}}}",
    "nonce": "0x52adf8a067a0fee724ad76b337159eb8e935753149e92cb936320d0c012a9fd7",
    "signature": "0xa55c6248b2a0d1dcf5575a4c0f27bfa90b11987eba656cb4dc484ccfc1f2330e2f917a235f9c4aa2d20f13f10af5815b11632003b9765453eeaf0c52259963f71b",
    "signer": "0x3BB23849430ADEf1350487E3011D5Bee89331743",
    "userId": "469579468"
  }
}