{
  "manageEntity": {
    "action": "Update",
    "entityId": "869546451",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfd5172c9d8459a3b09d7a968d65c939712ab179abc7f7dff90268c7950b85f21",
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    "signer": "0x5e726906F4D78E7A3A35216322A456744c5aFC76",
    "userId": "869546451"
  }
}