Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5b63b096d4dd2c94d7af1db3afe8f8062c4d628404ced950939be394c476182e' 
  AND token = 'ICU0wp9o0Xyp9jBLx5y9yYPW5TkmxLvntelqrOSsl5w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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