Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '74cae31683a82e3409ad9f4c5bcea8d6658adb9b8cb5d690666cd404db165af1' 
  AND token = 'qGBcABiGB75PrRfcLZpjO8N5EciKLE3m98/zdqHsCFA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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