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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'e0ca60c63b343d4e73c6f94555bf8c9f59e8cd5d75f86449ab020b822543ae5d' 
  AND token = 'zobuXOX/59dHs01kFqdZ63pJG7fphHH4wXkEYlnTRXo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}