{
  "manageEntity": {
    "action": "Update",
    "entityId": "145264625",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2b08f522f6c50e5d1e3b3276118f7bddd620bede3e51099ddb2a5828acc5bbc4",
    "signature": "0xbf034e706c43e28f92357ee4ce674df484c57135658e89a881fe1fb3d90e94bb20bd1eb9d8b6a88a74b8875c8d54986acc9aba333ef5af367abc4bb3d34670931c",
    "signer": "0x847d23265FCDC782e4C22a7089cD5b8896A75374",
    "userId": "145264625"
  }
}