Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd67aa1129feb918d64a758daf51a1d15074d36081c2388f5ef2bbb08eafcc736' 
  AND token = 'Hr2yEOX15r6zgN06fHLL9KR2YQckrWxvQadaDiH4JEE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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