Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd57b0fbafaba396f936c4e7ad5b08c8ae94bfa843a0bd6d5da41d5e74780a29b' 
  AND token = 'ZBK5WfEyf11QqRn08Hnq7iX35lUUCTIMP+FYNNS5K24=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00066

JSON explain

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