{
  "manageEntity": {
    "action": "Update",
    "entityId": "557135181",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierak2gsachs32aukaqtceryj7j3fanmzaiuxmngq2gakzumwb7z553q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":533815830},{\"type\":\"playlist\",\"playlist_id\":1088676470},{\"type\":\"playlist\",\"playlist_id\":1219210338},{\"type\":\"playlist\",\"playlist_id\":147244417}]}}}",
    "nonce": "0xda6beb64c187ed2760f2b624c39831569b7214a4dc794c706cc900f96853b18f",
    "signature": "0xe24c4709e93fa7025129b75cba2c5a4c9a9201d5f95da81186feb93b562df77a7477cc46b357cc6172651a7dfa0950f29e1db714f1e730052985b516447d3ddd1b",
    "signer": "0xBBBE9eFc177a4E708d317195Fa81aA6E8E2F7E92",
    "userId": "557135181"
  }
}