{
  "manageEntity": {
    "action": "Update",
    "entityId": "463162548",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdc376131b1f90c91501b4473616494cb7e9ec4a302adf43f81ec22a411ad051b",
    "signature": "0xa9cdf4791dbf2bd50102bc71b73a333fef9ca6309b6e8c44dcdae54f963f27bf4ad19d9d23d3b58e1eb923848859f49f20c1cfc518b059fa81ddf58f068316011b",
    "signer": "0x6B4CB8664E41AB502212155456Fe4feEDeA85555",
    "userId": "463162548"
  }
}