{
  "manageEntity": {
    "action": "Update",
    "entityId": "416741831",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieralbrkpuaebi7qssn4kljqnxsclm7qyrbiq5ljbmswzeobky56uo4q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2033423721},{\"type\":\"playlist\",\"playlist_id\":386108868},{\"type\":\"playlist\",\"playlist_id\":1363300829}]}}}",
    "nonce": "0x4605f2a0e3291dd8ea8c1d151ba7fac8b127a9edf924629796f20114cf307929",
    "signature": "0xd50510a7734e1e06c827891296d4552d4ff4a8e2930d0469597e3852a492596339cca30d1acb20a73020a049038f9045126000c7a15bb13c7467b3b4f9151abe1b",
    "signer": "0xA84a9A3d7f3574999046Ebaf25EE96c849774a2E",
    "userId": "416741831"
  }
}