{
  "manageEntity": {
    "action": "Update",
    "entityId": "626695920",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x10ad3ad239cc807dbf0695d8ad4ed167c4fe28e4e52e87a78f5c4555940e40f3",
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    "signer": "0xE45b28F5F106Ae49FC2e536581AF201F3CeE6381",
    "userId": "626695920"
  }
}