Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22b2c8a3f821de0b6ed823cbcfee0987331683d772401e773481fbe2eb522892' 
  AND token = 'O/Ht5B+AbhwqmV9rm7gVOyR3XRMUhULVGlDG5/w751I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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