{
  "manageEntity": {
    "action": "Update",
    "entityId": "917529564",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd0aa454ff9e2c7d5135abb38bb7f9e6efc4a875a48201f935e576c4a0bec2e2b",
    "signature": "0xdf3311a287ceb9b52c2cb3556c643ec40f15369191d4298f6f8ef3f84f7e19f617ce797b567991d9770ebbd8136b45f99dd068f6f2c9b7bf54a7323cdb38edab1b",
    "signer": "0xF8d80ebA925124C0B26A5df9714fc71941B1B0e8",
    "userId": "917529564"
  }
}