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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'e0d2b235dc47ae8009e402669002e8ab587a9a45d1aaf4ff252ab13e862a97b3' 
  AND token = 'qF2kyHfOLo2E9JRmggjJNO6uD8uubN4q+7Tc7nASx4g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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