{
  "manageEntity": {
    "action": "Update",
    "entityId": "406716751",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x593757f5ec5327976f3cddb3efdcbbd014ff2301b32080dd2c679adc641ded1a",
    "signature": "0x19eb768104be2dba392382d7e5b3e1c498e4fc20097c671d62dbfa55d921a72b2b28060ab6240a056244876f41033b1496d068d2d5492c9e98c049255953ad431b",
    "signer": "0x31eba27Ca105bABB3B8590b9A71b07C6d1e7c747",
    "userId": "406716751"
  }
}