Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '47129d137c4eb93bf0e7aa656fcde0830736780e8f7f81d40d2688ed2fac036a' 
  AND token = 'QorNokGQ0qwJggY7lJLe0OINMPkhUYJOIw7IaxiWozk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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