Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7236ef50b292090e29986e7083cf4b61ce2b2ce4329e58aa2622525b27646d66' 
  AND token = 'yUjI48gGqZssAbZ8H+3ZE7eUp9rzcayG1fPzp9bHKcA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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