Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '60c9138f6dc9a6e559b8bfd8bc96fe87ad34d25a3ab5463a99b98cf1d061276d' 
  AND token = '3E0Q92YBr96kEmXsYRPm8rtNMuJmhkoZ6UFGX9rUhY4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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