Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'f62d94216ca7396f285c435f4a05fbb9e9bbb28252dc487881b338ab58afd770' 
  AND token = '6Vp5DelqkzjlBDv0amv0r2cUEH3VqeTDTueAv8Ezhtk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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