{
  "manageEntity": {
    "action": "Update",
    "entityId": "672554339",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc2196815eace0676dc48935853837aa797428143f02a6d8f3546243e464898d8",
    "signature": "0x62e31e852d8ae9922dceb54c6400bb06dcc0c290ef8dbbdf2099ced47d2959bc4ab0b818361d57d3300da94482d0320f59e9676c904cdbb7bcbdae111b1e21ba1c",
    "signer": "0xde80fAAA7CD732faE04Ab28935d412e3dca22F6e",
    "userId": "672554339"
  }
}