Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2e2ebe47a7c790279f47dd5ea37eb5cbfe3140d0d7b408c5f19c92b15845b3f9' 
  AND token = 'fuoQhYugjCKocRoiQojEirAN/QIPdHdG68r14lRQGJE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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