Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '09d6d64d60cc32141ea34e64ea36b14de59f44c9d6b9844297f2770b869214bb' 
  AND token = 'OfxEbBaPqPCj0ujD3sl5Td9apl/BFpuVnNA2/OsZSM4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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