{
  "manageEntity": {
    "action": "Update",
    "entityId": "633494619",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcd9a121e604ce8a77cc89c4ea6d7eaac373e1605fd0df5dd079175adcada42a2",
    "signature": "0xc16d2689ef52fcbea126b888937cc22ed35f2dfa15c1647e49dfd3da5836b2ab5f0f6ce7d368869fb2069b35ea99d3b029b5077be9f00e6fd5c5495fd2e811e41c",
    "signer": "0x7B499405130cFEFBBaec9980A9E37BBE42E8589D",
    "userId": "633494619"
  }
}