Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32ff64cd80ff95f792a13f0727a5a4e8afff21ff920ca0280663f3d7d26faa19' 
  AND token = 'o0EKT6L9EQzN0JkhIebCm+zHOmZ2hE/F0GLJA5vRIwc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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