Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '196229da2c812b7891dd5d6c3a762bca918fe861adab7bc5749efc25e595a8b6' 
  AND token = 'H4NMpqggdYPXL7V9GV9o2i+qCQJZyJbWp4ovE7WqdwM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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