Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '967629f2198f0b389864247533e1fbac0289ef5ed408fbc04facdafaad42b69b' 
  AND token = '3fp9tGQfJvKSy1nZXJXF3x8Fnace5SUz0F4cQ0uD0lY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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