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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd73e8effa1b0938bd7212c2c0e8cc9b97d17d85d723591eb74f7cd605de44472' 
  AND token = 'xQPcqeGJm3acRRTNB5miAGoyQi7a6yBWaEZaAQEU5es=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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