{
  "manageEntity": {
    "action": "Update",
    "entityId": "442277469",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera57d5cnxy7xhxretv7i6kxt5cfiiys52kokscvlbcbwgk56qwgg5q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":404642876},{\"type\":\"playlist\",\"playlist_id\":1393071726}]}}}",
    "nonce": "0xca709dc1915281ae9d2d77bf67e80ab1413dc5c3934b04d6060acbbd9a544de0",
    "signature": "0xcdea0fae2ee23c80ffc253b63a025e358ec51f6cb18086e32913003cd6b0bffb3dbd743ef880abd2035e3f9654240d659e21e77456f17739e884270b67c45bee1b",
    "signer": "0xcE1000874CF7A0a7b16c35A55F7D6f10C607A868",
    "userId": "442277469"
  }
}