{
  "manageEntity": {
    "action": "Update",
    "entityId": "275894922",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierafxk6gmtfeysgz3xg5aayvvdngkrllgna5guzp6sf3o5lwomkof7q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1612777410}]}}}",
    "nonce": "0x3025fa466b3a45360494ad232c0c9989d3b67f3285016c85226dd43962e2c2f8",
    "signature": "0x45d50506addb29047584a767565e3a28d226412591393d866599a77875fa5c09796ad9fc0c20bbc76a9018f915c118c8658436cc102129b22ec88b6abf73311b1b",
    "signer": "0xDBc62e161edE36C9CF28f224aaE39B3Ad74C9B2b",
    "userId": "275894922"
  }
}