Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd085bc3a0ae5fe160a43dac738890f141c2036de06aaba5948ab5c7a1fc74176' 
  AND token = 'xsv79IOYMYBDR45j/LU8pMXWpiKRq/HPUq2V3J91s0E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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