Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cd361afd6e95a36a724841a534d5a11e904f17f133767e5664235ddc046e0fcf' 
  AND token = 'YLL864AoPvZsyw6sK3YTgE5z6ti2g+Q6q67aDF9fYXk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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