Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e29f37c9d956f735217529d534d529ad190a75d7243f3302cb6041826feba9c6' 
  AND token = 'cIYhMEUe7x3DqjGhySSWe7Zgfdo4Tqqsrgd7wI6gIss=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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