Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07ee37987f03d740c36ed5f6bb436d43982cd11c9c9d10479955a16511067725' 
  AND token = 'gCHhOofEw6Rays/4vPevTZ3h8EAUHvNMjD9p6iMQyeE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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