Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '622a7dec73602b0aab16422da051c0b4a61a758593c5b9437230b52b00038926' 
  AND token = 'YfIoc2vTMgOBux45iN8NwWzjNvfgPX9SQ6tY+i50bp4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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