{
  "manageEntity": {
    "action": "Update",
    "entityId": "977596208",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcb733c1e7be832b19b59f8100da9352fdc4bf1375672903f71a245660734915d",
    "signature": "0x398c49bdae4bb18071df3e4c465b87fe06417fd186cdf19090208ef8016ffcf60dea80abe3f67ab4f80a4e44fdcb339adc1ecfff3a6d8e5b56b65d209634f22d1c",
    "signer": "0x26aD485ca53909a65Ab4b9144Edb58920b225e48",
    "userId": "977596208"
  }
}