Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1fc2611dacf319f78caa945930b37b382cb17104bb60fcc9a5a7e92b0fbb2575' 
  AND token = '7/Ss9fc5DBIE5MbXoMkzbce3U49r7sGz8rhCBHpLlRY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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