Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd63a47419687356d16fa0b79d19cea7bcf226175b4c33d159d5627163651028a' 
  AND token = 'TOL3e3S1HGNP9muYVG0dftkHnSTRp8/iXkym6kgbYKE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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