Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '80ee46f50bb48c45054865118d6571f2e45ef85cf4c559b209f078ae424e150c' 
  AND token = 'Xp04L9d86YSutzHzoie05yb8CzhSWJpkX8wCSPQvYGM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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