Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2ff1573824729c6b26b1d15ff1020f820eaabd940ab070ae6ebd6f4da38e877d' 
  AND token = '9EIUv2u8TLCtJ1pygem2T3oonWOCCdk/NLgeWeYVy9U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00090

JSON explain

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