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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'e659a088b0bd7dc30c96440e3bc04bc686118616f8c88748afb01e67b9ce9948' 
  AND token = 'QC7z6Lm6OBVVPtabJuAiRrTGTE8qTtw8cLcROiBgi98=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.01330

JSON explain

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