{
  "manageEntity": {
    "action": "Update",
    "entityId": "271868552",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa61f9c4f00ee3eef5857ea57907b19a40a69ada59c0532854f3ebc566a5909f7",
    "signature": "0x7e18f63b9ccfaad608a3361defe86626d4d4cbe700539ecf276ed28904fdb6904ceac8236647cbd5832a489e9a8c31162fafade43fc5bb3581c1c21081650f981c",
    "signer": "0xb6457a848FEe1525B249c5809C4143A87E72aba7",
    "userId": "271868552"
  }
}