Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '68e08aab4837dd198bf5a3eb94ae1519789a430516fcbb3cabfdea654cdb3723' 
  AND token = 'ftZPyP3x23OG8ba7E7xC3VpZyun+0oPW3gvdXw6MAkc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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