Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e0a64d55138fdf0bca25556a2ba2368f466464671bc3225ccd22d95949d4ac4b' 
  AND token = 'bfrGQgoer14uK8G/Sc4JwfnhSWxqrno9qRHm/9x9Foc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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