{
  "manageEntity": {
    "action": "Update",
    "entityId": "189995856",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5ovbq7sexda7u72qvtfompkiilnlc24znsu74yu633p5neflskua\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1716881204},{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0a0a3eeda117fe8d5d95dd143a88a54a00bd466a4cab51cba809fdc50f691f5d",
    "signature": "0x35451bcc2d2589968b3301ec4720e10b09d71821bd7335166e98b210d4c73e1336a4ec266fe76229a9ef0d730bed51958ff4f1c93d7bcdfbc4e64524292192421c",
    "signer": "0x49ea1963bD0698Ba4421742478714fbFa38E0719",
    "userId": "189995856"
  }
}