{
  "manageEntity": {
    "action": "Update",
    "entityId": "746985041",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe5b5c1b68d1a855471aedfdd36e86ac694627062a12770999f5e91f1b79f0530",
    "signature": "0x67451a5605a16d479d4c8f172d52538fb9b58cda928cc4c1e0c221319d202ca66ea1bce835f7996f0e6b187da86f510ad5dfb1691115ca247cfb9cff0fed63bf1c",
    "signer": "0x152997aF52343061900a376736c64660C14F200d",
    "userId": "746985041"
  }
}