Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'f2c95b5809a657019a2f984b5bd6beccb6ae270c65e525ab8e2e7e62c50156f2' 
  AND token = 'vWKdT86/1ylMHO6+3ksBc+U+y08R5l5+Pyoyd1iak5U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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