{
  "manageEntity": {
    "action": "Update",
    "entityId": "140102834",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraphgddimhfzva6gojjdeftvjeoopa66iz56rxusvumbfkir3rdh2a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1083876608},{\"type\":\"playlist\",\"playlist_id\":950139397}]}}}",
    "nonce": "0x63e3e691c2aef3abfe9e8bc69b9de8132782aea00ccf9d9a3bba242387b276cb",
    "signature": "0x52f7ae3532841a418b323df21e247d67d04ea9571b8e5fe5e9955854e019204809e841d6d14dad1a3c7b5e06f7315cec579b366a8c38e753a5ab83ae5adb2c041b",
    "signer": "0xb7A2Af0cBD7855Bb6a84B86455d3eABB0883A943",
    "userId": "140102834"
  }
}