{
  "manageEntity": {
    "action": "Update",
    "entityId": "597678338",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierasyd5z54z2lw3cy75b23clas5g3e5cu5h3dbgo6dtvvxqlvykrkqq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":101772472}]}}}",
    "nonce": "0x808492c79e097675c8b204f1939c843ea2e2c57a29a6662a61810733d032bc80",
    "signature": "0x7c628960c2d014c819565f9117ebc50cc36246d57010a4572df46692b64e29fe1ab0af57047423ac293b475a1beea605899106b3beee781cb2d949358673c5b61c",
    "signer": "0x1AB859583C6787238997C7Bc10Eb6b8A71f4D7d4",
    "userId": "597678338"
  }
}