{
  "manageEntity": {
    "action": "Update",
    "entityId": "731388658",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierajsjbsgplwnrdquqnnbnoekiqfrmvbrswaalo5g5lsjdid2vvpdwq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":147288428},{\"type\":\"playlist\",\"playlist_id\":61447434},{\"type\":\"playlist\",\"playlist_id\":975816959}]}}}",
    "nonce": "0x6f234ad858e48bbea05b94858d38627382e684d0923f13b1ed56f6cdbc2e6339",
    "signature": "0xd12d84ca6d55724056ebdc840f71f4f3a122a2400ceb459b3320fe2e6be36bb5701f1433a83bd683566b4a9d3b509f98f5f4703a5ee4a0d4d14556d3054767911b",
    "signer": "0x0Bb059fe8308cB4D6cDD7d79E6b2AE72b3b9DD2c",
    "userId": "731388658"
  }
}