Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f7dffea41a19e81f2c656be4bd5072c1676076663d751a5519ee8a9328444c7a' 
  AND token = 'H1ySC/S1v/4u/7GKqQ28uGnb8ge5vInSgTIjp6075jw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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