{
  "manageEntity": {
    "action": "Update",
    "entityId": "275350856",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9486473870232ffbeb90767eb1c2ca4aeceaf6a85d4424fe6ac2f36c31bf833a",
    "signature": "0x7c2df0333de8d3a12ad9cc8bafd50752735106ea0bfc3ddecfc1d7b1975374e51ca3719abfbc7eac8f6d3dbf84d497dfe5407293dc88ad113306fe25e4c313b91c",
    "signer": "0x99cc71DF4121e0a865e7D094866224A204ae2b44",
    "userId": "275350856"
  }
}