{
  "manageEntity": {
    "action": "Update",
    "entityId": "479039338",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xce4f4603c67021bf13bb720aae12d4252a020a991558137a1ac97191bb7a4b5c",
    "signature": "0x1009abc99f68f10ecd98e46ea3fce5353f41bd56feb24003f8429a7f0b8f6aaa56b859e5b4f30f4bfc800ba58a254c06be7f05087b9654c3ca37c91410cc9e7f1b",
    "signer": "0xDA5EF39662B4ef70B52C25F33b5637165C93DE3c",
    "userId": "479039338"
  }
}