Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0818176648d943dfa433e12b982ce4babc1c531c540dcf02cc1f682bdde7db73' 
  AND token = 'pr/PCh/KtPeFcIDtAmiovcqsz8ZGsGfKZ/nhr2tdPOE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

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